[PHP] Images can execute php script?
Today I seen a hack into php that has rocked me to my foundation. I seen a picture uploaded onto a server using php and when php displayed the image, phpinfo() was executed and displayed. Does this problem exist in PHP 5.2.17 +? How do you stop it? Sorry, I have never known of this before today. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images can execute php script?
Bastien Koert On 2012-09-23, at 11:57 AM, admin ad...@buskirkgraphics.com wrote: Today I seen a hack into php that has rocked me to my foundation. I seen a picture uploaded onto a server using php and when php displayed the image, phpinfo() was executed and displayed. Does this problem exist in PHP 5.2.17 +? How do you stop it? Sorry, I have never known of this before today. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Jpgs can hold other data rather than image data One thing to try is to run strip_tags($image) to remove any php code http://stackoverflow.com/questions/3499173/my-php-site-was-hacked-by-codes-uploaded-as-image http://josephkeeler.com/2009/04/php-upload-security-the-1x1-jpeg-hack/ Bastien
Re: [PHP] Images can execute php script?
On Sun, Sep 23, 2012 at 9:57 PM, admin ad...@buskirkgraphics.com wrote: Today I seen a hack into php that has rocked me to my foundation. I seen a picture uploaded onto a server using php and when php displayed the image, phpinfo() was executed and displayed. Does this problem exist in PHP 5.2.17 +? How do you stop it? Sorry, I have never known of this before today. How PHP is displaying the image? If it includes then its certainly possible? -- Shiplu.Mokadd.im ImgSign.com | A dynamic signature machine Innovation distinguishes between follower and leader
RE: [PHP] Images can execute php script?
Jpgs can hold other data rather than image data
One thing to try is to run strip_tags($image) to remove any php code
http://stackoverflow.com/questions/3499173/my-php-site-was-hacked-by-codes-u
ploaded-as-image
http://josephkeeler.com/2009/04/php-upload-security-the-1x1-jpeg-hack/
Bastien
I understand the principle behind
include('pages/' . $_GET['page'] . '.php');
http://www.mysite.com/index.php?page=../upload/image.jpg?cmd=somecode%00
Which I find ridiculous if anyone did that.
I am not sure how he was calling the image to be sure. I watched him upload
the image and then
Do what looked like a normal echo UPLOADED_IMAGES.$_FILE[name]; You seen
phpinfo() called but it was not in the script rather in the image.
He opened the test.jpg in a text editor and sure enough there was ?php
phpinfo(); ? in the code of the jpeg.
This bothers me because I am not sure what all he did. He was proving PHP is
not a safe language in front of a rather large group or people in the
meeting.
I could only look on in disbelief that it just happened in front of me.
Everything inside of me wants to say he was doing something outside of what
I consider normal circumstances.
My question is this:
If someone uploads a image through a form or whatever and they have embedded
a code in can that code inside the image be executed by viewing the file?
$image = 'uploaded.jpg';
Echo IMG SRC='.$image.';
Read this:
http://php.webtutor.pl/en/2011/05/13/php-code-injection-a-simple-virus-writt
en-in-php-and-carried-in-a-jpeg-image/
That was written a couple months ago.
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Re: [PHP] Images can execute php script?
On 23-09-2012 21:30, admin wrote:
Jpgs can hold other data rather than image data
One thing to try is to run strip_tags($image) to remove any php code
http://stackoverflow.com/questions/3499173/my-php-site-was-hacked-by-codes-u
ploaded-as-image
http://josephkeeler.com/2009/04/php-upload-security-the-1x1-jpeg-hack/
Bastien
I understand the principle behind
include('pages/' . $_GET['page'] . '.php');
http://www.mysite.com/index.php?page=../upload/image.jpg?cmd=somecode%00
Which I find ridiculous if anyone did that.
I am not sure how he was calling the image to be sure. I watched him upload
the image and then
Do what looked like a normal echo UPLOADED_IMAGES.$_FILE[name]; You seen
phpinfo() called but it was not in the script rather in the image.
He opened the test.jpg in a text editor and sure enough there was ?php
phpinfo(); ? in the code of the jpeg.
This bothers me because I am not sure what all he did. He was proving PHP is
not a safe language in front of a rather large group or people in the
meeting.
I could only look on in disbelief that it just happened in front of me.
Everything inside of me wants to say he was doing something outside of what
I consider normal circumstances.
My question is this:
If someone uploads a image through a form or whatever and they have embedded
a code in can that code inside the image be executed by viewing the file?
The answer to this is both yes and no. It all depends on:
a) what you do with the file
b) how your webserver is set up / configured
PHP scripts are executed using the PHP interpreter. This means, that for
a PHP script to be executed, the server needs to:
1. assume the requested file is a PHP script
2. run the PHP interpreter, and provide it the requested file
3. return the output from the PHP interpreter
Most sane servers, when they get a request for a .jpg file, do not
assume it's a PHP script, and simply return the raw image, which might
include PHP script, but which will never be run by any sane person.
Some servers however, are configured to run everything through the PHP
interpreter, before returning its output. In this case: yes, bad stuff
will happen.
Alternatively, it's possible to run code in files from within other
files. An example of this was given above, where you showed that
including a file containing PHP code will execute that code. Regardless
of what the file is exactly.
In practice I must admit I have very rarely seen this exploit in action,
since most proper servers and scripts are configured / coded by sane
enough people for this not to be possible. Unfortunately, if you come
across a novice coder, (s)he might use the include 'someImage.jpg'
technique to return images, instead of echo
file_get_contents('someImage.jpg'), which under these circumstances is
a much safer way of doing the same thing.
- Tul
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[PHP] Re: PHP images server
'Twas brillig, and Jean-Michel Philippon-Nadeau at 04/08/10 16:48 did gyre and gimble: Hi List, My website uses a lot of external images coming from many different websites. Those images are sometimes small, sometimes big, and to reduce the loading time of my pages and for better uniformity, I've built a small PHP images server that resizes to a predefined set of dimensions the images if necessary. To save on CPU usage, the resized version is stored on Amazon AWS. When requesting an image of a specific size, if the resized image exists on AWS, that image is used. The images server then redirects the browser to the AWS URL. I don't believe having 80 redirections is a very clean solution so, my question is: How can I optimize my process while keeping the load on Amazon's servers? Presumably you generate the links to the files to put into HTML or CSS at some point? Rather than check if an appropriate sized image is available then the image is requested, why not check when you generate the link to the the image? If when you generate the link it is NOT available, do the necessary stuff to generate it and upload to AWS, then carry on. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] PHP images server
Hi List, My website uses a lot of external images coming from many different websites. Those images are sometimes small, sometimes big, and to reduce the loading time of my pages and for better uniformity, I've built a small PHP images server that resizes to a predefined set of dimensions the images if necessary. To save on CPU usage, the resized version is stored on Amazon AWS. When requesting an image of a specific size, if the resized image exists on AWS, that image is used. The images server then redirects the browser to the AWS URL. I don't believe having 80 redirections is a very clean solution so, my question is: How can I optimize my process while keeping the load on Amazon's servers? Thanks in advance, -- Jean-Michel -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images again
On Fri, April 13, 2007 8:02 pm, Børge Holen wrote: Before mr lynch starts beating up those already dead and probably long since burried horses... Images in a database! Feh. Read the archives. See I was just wondering, and that at times leads to late nights I used to read the images from two different files; one watermarked the image and one let it throught without any hazzle. Of course this kind of script was easy enought to get around the watermarking, witch I fixed with the http referer witch as follows IE don't send. I don't particulary like ppl who use IE (ups did I upset someone?) ;D. Using referer for anything other than logging it for analysis later is probably your first mistake... However I started compressing my scripts and putting them inside one file. And the status is so far: * Query for the image object. * Query for copyright check in case of watermarking. If no watermarking skip to echo * Read the object. * put object in a file outside webroot like /tmp. * read both the watermark and object * merge * echo Is it possible to skip one query and still be able to read ownership from a table and at the same time stream the object, witch lead me to the next question, I can't seem to be able to make imageCreateFromJPEG handle the direct stream, nor that I fetch it in an array, is any of this possible? imageCreateFromString should work on your un-watermarked image from the DB. When you need the watermark, you can load the watermark from whatever source you like (file with imagecreatefromjpeg or DB with imagecreatefromstring) You can then merge the two images (original and watermark overlay) in RAM with imagecopymerge calls, or perhaps playing with an alpha blend with imagealphablending first. Creating that tmp file and writing/reading to it is probably a pretty serious performance bottleneck that should be addressed for any kind of heavy traffic or large images. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images again
On Tuesday 17 April 2007 01:58, Richard Lynch wrote: On Fri, April 13, 2007 8:02 pm, Børge Holen wrote: Before mr lynch starts beating up those already dead and probably long since burried horses... Images in a database! Feh. Read the archives. See I was just wondering, and that at times leads to late nights I used to read the images from two different files; one watermarked the image and one let it throught without any hazzle. Of course this kind of script was easy enought to get around the watermarking, witch I fixed with the http referer witch as follows IE don't send. I don't particulary like ppl who use IE (ups did I upset someone?) ;D. Using referer for anything other than logging it for analysis later is probably your first mistake... Maby so, but it did work with everything but IE ;D. I seem to have a must try to different approches. However I started compressing my scripts and putting them inside one file. And the status is so far: * Query for the image object. * Query for copyright check in case of watermarking. If no watermarking skip to echo * Read the object. * put object in a file outside webroot like /tmp. * read both the watermark and object * merge * echo Is it possible to skip one query and still be able to read ownership from a table and at the same time stream the object, witch lead me to the next question, I can't seem to be able to make imageCreateFromJPEG handle the direct stream, nor that I fetch it in an array, is any of this possible? imageCreateFromString should work on your un-watermarked image from the DB. Yeah, perfectly When you need the watermark, you can load the watermark from whatever source you like (file with imagecreatefromjpeg or DB with imagecreatefromstring) You can then merge the two images (original and watermark overlay) in RAM with imagecopymerge calls, or perhaps playing with an alpha blend with imagealphablending first. already fixed with an transparent gif. Creating that tmp file and writing/reading to it is probably a pretty serious performance bottleneck that should be addressed for any kind of heavy traffic or large images. So I noticed, I'm also thinkering with a filsystem (using /tmp) as cache for the merged images. Not really useful since cuz of the few users, but then again, why not try. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- --- Børge http://www.arivene.net --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images again
On 4/14/07, Børge Holen [EMAIL PROTECTED] wrote: Before mr lynch starts beating up those already dead and probably long since burried horses... Images in a database! See I was just wondering, and that at times leads to late nights I used to read the images from two different files; one watermarked the image and one let it throught without any hazzle. Of course this kind of script was easy enought to get around the watermarking, witch I fixed with the http referer witch as follows IE don't send. I don't particulary like ppl who use IE (ups did I upset someone?) ;D. Hmm, nearly I use IE, NOT because i like it, but because i hate the others more (On windows platform). However I started compressing my scripts and putting them inside one file. And the status is so far: * Query for the image object. * Query for copyright check in case of watermarking. If no watermarking skip to echo * Read the object. * put object in a file outside webroot like /tmp. * read both the watermark and object * merge * echo Is it possible to skip one query and still be able to read ownership from a table and at the same time stream the object, witch lead me to the next question, I can't seem to be able to make imageCreateFromJPEG handle the direct stream, nor that I fetch it in an array, is any of this possible? You should fetch the stream manually in a string, and then use imagecreatefromstring, http://www.php.net/imagecreatefromstring As of now I need two files to make this happen. Either I use one file to check for rights and download throught a second file (close to the old solution) or I try this new thing and end up with one php file witch needs the object stream to be saved before it can be managed proberly. -- --- Børge http://www.arivene.net For the rest of your message, i don't understand what you're trying to do. Show us (parts of) the code you have now, and then explain what you've wanted to do, and what it does now. Tijnema -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images again
On Saturday 14 April 2007 09:45, you wrote: On 4/14/07, Børge Holen [EMAIL PROTECTED] wrote: Before mr lynch starts beating up those already dead and probably long since burried horses... Images in a database! See I was just wondering, and that at times leads to late nights I used to read the images from two different files; one watermarked the image and one let it throught without any hazzle. Of course this kind of script was easy enought to get around the watermarking, witch I fixed with the http referer witch as follows IE don't send. I don't particulary like ppl who use IE (ups did I upset someone?) ;D. Hmm, nearly I use IE, NOT because i like it, but because i hate the others more (On windows platform). Sounds so unlikely, didn't know anyone used that crap anymore... I thought everyone switched to tiger linux opensolaris aros etc when viste came out. ;D However I started compressing my scripts and putting them inside one file. And the status is so far: * Query for the image object. * Query for copyright check in case of watermarking. If no watermarking skip to echo * Read the object. * put object in a file outside webroot like /tmp. * read both the watermark and object * merge * echo Is it possible to skip one query and still be able to read ownership from a table and at the same time stream the object, witch lead me to the next question, I can't seem to be able to make imageCreateFromJPEG handle the direct stream, nor that I fetch it in an array, is any of this possible? You should fetch the stream manually in a string, and then use imagecreatefromstring, http://www.php.net/imagecreatefromstring YES FREAKIN PERFECT. As of now I need two files to make this happen. Either I use one file to check for rights and download throught a second file (close to the old solution) or I try this new thing and end up with one php file witch needs the object stream to be saved before it can be managed proberly. -- --- Børge http://www.arivene.net For the rest of your message, i don't understand what you're trying to do. Show us (parts of) the code you have now, and then explain what you've wanted to do, and what it does now. Just me blabbering in frustration... my code is now pretty simple. one connection, one query, two results, checks if image is copyrighted. Then with your contribution, prints with or without the watermark. Tijnema Thanks -- --- Børge http://www.arivene.net --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images again
Before mr lynch starts beating up those already dead and probably long since burried horses... Images in a database! See I was just wondering, and that at times leads to late nights I used to read the images from two different files; one watermarked the image and one let it throught without any hazzle. Of course this kind of script was easy enought to get around the watermarking, witch I fixed with the http referer witch as follows IE don't send. I don't particulary like ppl who use IE (ups did I upset someone?) ;D. However I started compressing my scripts and putting them inside one file. And the status is so far: * Query for the image object. * Query for copyright check in case of watermarking. If no watermarking skip to echo * Read the object. * put object in a file outside webroot like /tmp. * read both the watermark and object * merge * echo Is it possible to skip one query and still be able to read ownership from a table and at the same time stream the object, witch lead me to the next question, I can't seem to be able to make imageCreateFromJPEG handle the direct stream, nor that I fetch it in an array, is any of this possible? As of now I need two files to make this happen. Either I use one file to check for rights and download throught a second file (close to the old solution) or I try this new thing and end up with one php file witch needs the object stream to be saved before it can be managed proberly. -- --- Børge http://www.arivene.net --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images outside webroot + session = safe?
Hi there,
I am storing images outside the webroot to keep them from being accessible
for unauthorized users to see.
Then I use a script to show the images, like this:
img src=show.php
Now, as there is no information on the images stored in a database yet (they
have just been uploaded via ftp), I need to find a way of passing the
information as to which image is to be displayed.
I am currently trying out this way:
1. I read the filenames for all images in the upload directory into an
array.
2. I store that array in a session variable.
$_SESSION['images'] = $this-image_array;
3. I call show.php passing an array key:
img src=show.php?id=xy
4. In show.php I start the session, get the image information from the
session array, check if the mime type is okay and then display the image.
Of course I still need to add user authorization...
Any opinions on how safe this method seems or how it could be made
safer/more efficient? Do you think this method could be exploited to
compromise the server in any way?
Here the listing for show.php
?php
session_start();
$file = $_SESSION['images'][$_GET['id']];
if(is_file($file['path'].$file['file'])) {
//determine mime type and imagetype
$tmp = getimagesize($file['path'].$file['file']);
$file['mime'] = $tmp['mime'];
//if file is of valid type - output to browser
if(in_array($file['mime'], $_SESSION['conf']['images']['allowedtypes'])) {
header(Content-Type: .$file['mime']);
header(Content-Disposition: filename=.$file['name']);
readfile($file['path'].$file['file']);
}
}
?
Any comments are appreciated.
jt
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Re: [PHP] Images - Converting TIFF Format?
I searched through my server's system (I'm not running it, it's my ISP) and
finally found that TIFF isn't compiled into GD. I can get them to do it, but
I need to know what functions to use! Are they under a different file type?
I'm pretty sure I searched through thoroughly for the function. Did I miss
something?
Thanks for all your help!
On 4/19/05, Tom Rogers [EMAIL PROTECTED] wrote:
Hi,
Wednesday, April 20, 2005, 12:39:54 AM, you wrote:
TDJ Is there a quick way to convert a TIFF format picture to a GIF
quickly? I
TDJ can only find support for GIFs in PHP, but maybe I'm missing
something. I
TDJ have a client running a photography business, and I have designed an
image
TDJ watermark and resizing engine, and a server to check the request,
serve the
TDJ file, and then delete it. I mainly made this to help him run the site
TDJ himself, since he isn't very good with Photoshop, and can't watermark
the
TDJ images (I shouldn't say that...he probably could, but not very
fastbut
TDJ anyway...).
TDJ This is all working fine and dandy, but the system will only accept
GIF
TDJ format. His images are all raw scans in TIFF format. This means that
he has
TDJ to open the image in Photoshop, resize it, and convert it to a GIF. I
think
TDJ he can do this himself, but I'd like to make it even simpler, which
is why
TDJ I'm writing.
TDJ I need a quick way, preferably in PHP, but it doesn't have to be, to
TDJ convert large batches of TIFF format images to GIF. Does anyone know
of a
TDJ way to do this?
TDJ Thanks for reading, and for your responses in advance...
I use netpbm for conversion to png from tiffs and windows bitmaps like
this:
//$tempname from fileupload tmpname
//$file from fileupload name
$jobpath = '/wherever/you/want/files/stored';
if($im = getimagesize($tempname)){
if($im[0] 0){
//cleanup filename
$file = ereg_replace(',,$file);
$file = ereg_replace(%20,_,$file);
$file = ereg_replace( ,_,$file);
$ext = @substr($file, (@strrpos($file, .) ? @strrpos($file, .) + 1 :
@strlen($file)), @strlen($file));
$fname = basename($file,$ext);
switch(intval($im[2])){
case 7:
case 8:
//force a tif extension for netpbm
$tfilename = $jobpath.'/'.$fname.'tif';
move_uploaded_file($tempname, $tfilename);
$file = $fname.'png';
$filename = $jobpath.'/'.$file;
shell_exec (/path/to/netpbm/bin/tifftopnm -quiet $tfilename |
/path/to/netpbm/bin/pnmtopng $filename);
break;
case 6:
//force a bmp extension for netpbm
$tfilename = $jobpath.'/'.$fname.'bmp';
move_uploaded_file($tempname, $tfilename);
$file = $fname.'png';
$filename = $jobpath.'/'.$file;
shell_exec (/path/to/netpbm/bin/bmptoppm -quiet $tfilename |
/path/to/netpbm/bin/pnmtopng $filename);
break;
default:
$filename = $jobpath.'/'.$file;
move_uploaded_file($tempname, $filename);
break;
}
}
}
--
regards,
Tom
--
The Disguised Jedi
[EMAIL PROTECTED]
Now you have my $0.02. Or .01 Pounds, .014 Euros, or $0.025 CAN. I'm
world-wide BABY!
PHP rocks!
Knowledge is Power. Power Corrupts. Go to school, become evil
Disclaimer: Any disclaimer attached to this message may be ignored. However,
I must say that the ENTIRE contents of this message are subject to other's
criticism, corrections, and speculations.
This message is Certified Virus Free
Re[2]: [PHP] Images - Converting TIFF Format?
Hi, Thursday, April 21, 2005, 3:15:31 AM, you wrote: TDJ I searched through my server's system (I'm not running it, it's my ISP) and TDJ finally found that TIFF isn't compiled into GD. I can get them to do it, but TDJ I need to know what functions to use! Are they under a different file type? TDJ I'm pretty sure I searched through thoroughly for the function. Did I miss TDJ something? TDJ Thanks for all your help! As far as I know gd does not support tiffs directly. -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images - Converting TIFF Format?
Is there a quick way to convert a TIFF format picture to a GIF quickly? I can only find support for GIFs in PHP, but maybe I'm missing something. I have a client running a photography business, and I have designed an image watermark and resizing engine, and a server to check the request, serve the file, and then delete it. I mainly made this to help him run the site himself, since he isn't very good with Photoshop, and can't watermark the images (I shouldn't say that...he probably could, but not very fastbut anyway...). This is all working fine and dandy, but the system will only accept GIF format. His images are all raw scans in TIFF format. This means that he has to open the image in Photoshop, resize it, and convert it to a GIF. I think he can do this himself, but I'd like to make it even simpler, which is why I'm writing. I need a quick way, preferably in PHP, but it doesn't have to be, to convert large batches of TIFF format images to GIF. Does anyone know of a way to do this? Thanks for reading, and for your responses in advance... -- The Disguised Jedi [EMAIL PROTECTED] Now you have my $0.02. Or .01 Pounds, .014 Euros, or $0.025 CAN. I'm world-wide BABY! PHP rocks! Knowledge is Power. Power Corrupts. Go to school, become evil Disclaimer: Any disclaimer attached to this message may be ignored. However, I must say that the ENTIRE contents of this message are subject to other's criticism, corrections, and speculations. This message is Certified Virus Free
Re: [PHP] Images - Converting TIFF Format?
On Tue, April 19, 2005 7:39 am, The Disguised Jedi said: Is there a quick way to convert a TIFF format picture to a GIF quickly? I I'm reasonably certain you can get GD to read TIFF files, if you install TIFF on your server, and then the GD extension again... Start reading at http://php.net/gd to be sure. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images - Converting TIFF Format?
Hi,
Wednesday, April 20, 2005, 12:39:54 AM, you wrote:
TDJ Is there a quick way to convert a TIFF format picture to a GIF quickly? I
TDJ can only find support for GIFs in PHP, but maybe I'm missing something. I
TDJ have a client running a photography business, and I have designed an image
TDJ watermark and resizing engine, and a server to check the request, serve the
TDJ file, and then delete it. I mainly made this to help him run the site
TDJ himself, since he isn't very good with Photoshop, and can't watermark the
TDJ images (I shouldn't say that...he probably could, but not very fastbut
TDJ anyway...).
TDJ This is all working fine and dandy, but the system will only accept GIF
TDJ format. His images are all raw scans in TIFF format. This means that he has
TDJ to open the image in Photoshop, resize it, and convert it to a GIF. I think
TDJ he can do this himself, but I'd like to make it even simpler, which is why
TDJ I'm writing.
TDJ I need a quick way, preferably in PHP, but it doesn't have to be, to
TDJ convert large batches of TIFF format images to GIF. Does anyone know of a
TDJ way to do this?
TDJ Thanks for reading, and for your responses in advance...
I use netpbm for conversion to png from tiffs and windows bitmaps like this:
//$tempname from fileupload tmpname
//$file from fileupload name
$jobpath = '/wherever/you/want/files/stored';
if($im = getimagesize($tempname)){
if($im[0] 0){
//cleanup filename
$file = ereg_replace(',,$file);
$file = ereg_replace(%20,_,$file);
$file = ereg_replace( ,_,$file);
$ext = @substr($file, (@strrpos($file, .) ? @strrpos($file, .) + 1 :
@strlen($file)), @strlen($file));
$fname = basename($file,$ext);
switch(intval($im[2])){
case 7:
case 8:
//force a tif extension for netpbm
$tfilename = $jobpath.'/'.$fname.'tif';
move_uploaded_file($tempname, $tfilename);
$file = $fname.'png';
$filename = $jobpath.'/'.$file;
shell_exec (/path/to/netpbm/bin/tifftopnm -quiet $tfilename |
/path/to/netpbm/bin/pnmtopng $filename);
break;
case 6:
//force a bmp extension for netpbm
$tfilename = $jobpath.'/'.$fname.'bmp';
move_uploaded_file($tempname, $tfilename);
$file = $fname.'png';
$filename = $jobpath.'/'.$file;
shell_exec (/path/to/netpbm/bin/bmptoppm -quiet $tfilename |
/path/to/netpbm/bin/pnmtopng $filename);
break;
default:
$filename = $jobpath.'/'.$file;
move_uploaded_file($tempname, $filename);
break;
}
}
}
--
regards,
Tom
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Re: [PHP] images process
Yes, I need a sample ( display images with php directly from database ) for reference... So, can you help me ? Many thank for your help ! Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: So, how can we fix this kind of problem ? is it a problem? Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
You need to set up an apache server get that running on your windows machine in order to run php. Then you go thru IE to view the php script run it that way. [EMAIL PROTECTED] wrote: Yes, I need a sample ( display images with php directly from database ) for reference... So, can you help me ? Many thank for your help ! Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: So, how can we fix this kind of problem ? is it a problem? Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
On Sun, 21 Nov 2004 22:22:52 +0800, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Yes, I need a sample ( display images with php directly from database ) for reference... So, can you help me ? Many thank for your help ! Does this help? http://www.onlamp.com/pub/a/onlamp/2002/05/09/webdb2.html google: php image database J. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
Sorry, I need a sample of php program... Thanks! Paul Furman wrote: You need to set up an apache server get that running on your windows machine in order to run php. Then you go thru IE to view the php script run it that way. [EMAIL PROTECTED] wrote: Yes, I need a sample ( display images with php directly from database ) for reference... So, can you help me ? Many thank for your help ! Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: So, how can we fix this kind of problem ? is it a problem? Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
On Mon, 22 Nov 2004 09:13:14 +0800, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Sorry, I need a sample of php program... Thanks! Does this help? http://www.onlamp.com/pub/a/onlamp/2002/05/09/webdb2.html google: php image database J. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
[EMAIL PROTECTED] wrote: Sorry, I need a sample of php program... They are dime a dozen on google. please trim your posts. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images process
Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
[EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
So, how can we fix this kind of problem ? Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images process
[EMAIL PROTECTED] wrote: So, how can we fix this kind of problem ? is it a problem? Raditha Dissanayake wrote: [EMAIL PROTECTED] wrote: Dear You, How to load images ( eg: gif, jpg) with base64 function from Database on IE directly ? as far as I know you cannot do this with IE directly. Is there any samples to me for reference ? Many thank for your help ! Ed. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images problem
If i have 2 images: $im1 = imagecreate (100, 100); $white = ImageColorAllocate ($im1, 255, 255, 255); $im2 = imagecreate (50, 50); $black = ImageColorAllocate ($im2, 0, 0, 0); How can i put $im2 over $im1 and result one single image? Is there a function to do this? Thank You
Re: [PHP] Images problem
I believe you can use imagecopymerged to do this. http://us2.php.net/manual/en/function.imagecopymerge.php please let me know if that helps. Thanks -randy rinehart - Original Message - From: Phpu [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, November 17, 2004 10:05 AM Subject: [PHP] Images problem If i have 2 images: $im1 = imagecreate (100, 100); $white = ImageColorAllocate ($im1, 255, 255, 255); $im2 = imagecreate (50, 50); $black = ImageColorAllocate ($im2, 0, 0, 0); How can i put $im2 over $im1 and result one single image? Is there a function to do this? Thank You -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images problem
Phpu wrote: If i have 2 images: $im1 = imagecreate (100, 100); $white = ImageColorAllocate ($im1, 255, 255, 255); $im2 = imagecreate (50, 50); $black = ImageColorAllocate ($im2, 0, 0, 0); How can i put $im2 over $im1 and result one single image? Is there a function to do this? Thank You this looks like what you need http://www.php.net/manual/en/function.imagecopymerge.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images problem
If you're looking for a way to merge images, look at imagecopyresized() If you're going to be doing a lot with images in PHP, it's good to spend a lot of time reading the images section of the manual - there's a lot in there and all with somewhat similar names - it can get confusing at first. -M -Original Message- From: Phpu [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 17, 2004 11:05 AM To: [EMAIL PROTECTED] Subject: [PHP] Images problem If i have 2 images: $im1 = imagecreate (100, 100); $white = ImageColorAllocate ($im1, 255, 255, 255); $im2 = imagecreate (50, 50); $black = ImageColorAllocate ($im2, 0, 0, 0); How can i put $im2 over $im1 and result one single image? Is there a function to do this? Thank You -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images problem
It's working Thanks a lot - Original Message - From: Randy Rinehart [EMAIL PROTECTED] To: Phpu [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Wednesday, November 17, 2004 6:29 PM Subject: Re: [PHP] Images problem I believe you can use imagecopymerged to do this. http://us2.php.net/manual/en/function.imagecopymerge.php please let me know if that helps. Thanks -randy rinehart - Original Message - From: Phpu [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, November 17, 2004 10:05 AM Subject: [PHP] Images problem If i have 2 images: $im1 = imagecreate (100, 100); $white = ImageColorAllocate ($im1, 255, 255, 255); $im2 = imagecreate (50, 50); $black = ImageColorAllocate ($im2, 0, 0, 0); How can i put $im2 over $im1 and result one single image? Is there a function to do this? Thank You -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] images doesn't seem to cache
To view the terms under which this email is distributed, please go to http://disclaimer.leedsmet.ac.uk/email.htm On 06 November 2004 20:09, anders thoresson wrote: This code seems to work. Have I got it right? No. I have not. Sometimes the images are viewed from the cache, just to get downloaded from the server again next time, just a minute later, when I try again. My local development server is running IIS, my production server is running Apache. Where is the best place to look for If-Modified-Since? Is $_GET['If-Modified-Since'] a safe bet? For Apache, I found it in $_SERVER['HTTP_IF_MODIFIED_SINCE']; if IIS passes it to PHP, I would definitely expect it to be in $_SERVER[]. Cheers! Mike - Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning Information Services, JG125, James Graham Building, Leeds Metropolitan University, Headingley Campus, LEEDS, LS6 3QS, United Kingdom Email: [EMAIL PROTECTED] Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images doesn't seem to cache
anders thoresson wrote: This code seems to work. Have I got it right? No. I have not. Sometimes the images are viewed from the cache, just to get downloaded from the server again next time, just a minute later, when I try again. My local development server is running IIS, my production server is running Apache. Where is the best place to look for If-Modified-Since? Is $_GET['If-Modified-Since'] a safe bet? No, it's a http header, not a get parameter. I'm not sure if this header is made available under IIS. Under apache you could use apache_request_headers(). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images doesn't seem to cache
it won't be a php-parameter. Seen as the script isn't executed when the server decides it is the same as the cached version. So only if it deems not to be, then it runs the script, and when it does that, the script doesn't need to know anything about modified-since, because that checks has long since been passed. Really? It's not until the script is executed that the acutal image is accessed. Until, it's only refered to as a picture id, and int-value. Your suggestion was to use If-Modified-Since. How and where should I do a check for it? Best regards, Anders -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images doesn't seem to cache
Your eyes are fine. You need to check for If-Modified-Since header, if
the time is older than file modification time (filemtime()) send
Last-Modified header and the image, else send 304 Not Modified response.
This code seems to work. Have I got it right?
// Get the time the cache file was last modified
$lastModified = filemtime($pPath);
// Issue an HTTP last modified header
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $lastModified) . '
GMT');
if (isset($_GET['If-Modified-Since']))
{
// Split the If-Modified-Since (Netscape v6 gets this wrong)
$modifiedSince = explode(';', $_GET['If-Modified-Since']);
// Turn the client request If-Modified-Since into a timestamp
$modifiedSince = strtotime($modifiedSince[0]);
}
else
{
$modifiedSince = 0;
}
// Compare time the content was last modified with client cache
if ($lastModified = $modifiedSince)
{
header('HTTP/1.1 304 Not Modified');
}
else
{
$extention = substr($path, -3);
if ($extention == jpg)
header(Content-type: image/jpeg);
if ($extention == gif)
header(Content-type: image/gif);
if ($extention == bmp)
header(Content-type: image/bmp);
if ($extention == png)
header(Content-type: image/png);
readfile($pPath);
}
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Re: [PHP] images doesn't seem to cache
This code seems to work. Have I got it right? No. I have not. Sometimes the images are viewed from the cache, just to get downloaded from the server again next time, just a minute later, when I try again. My local development server is running IIS, my production server is running Apache. Where is the best place to look for If-Modified-Since? Is $_GET['If-Modified-Since'] a safe bet? //Anders -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images doesn't seem to cache
Anders Thoresson wrote: This code seems to work. Have I got it right? No. I have not. Sometimes the images are viewed from the cache, just to get downloaded from the server again next time, just a minute later, when I try again. My local development server is running IIS, my production server is running Apache. Where is the best place to look for If-Modified-Since? Is $_GET['If-Modified-Since'] a safe bet? it won't be a php-parameter. Seen as the script isn't executed when the server decides it is the same as the cached version. So only if it deems not to be, then it runs the script, and when it does that, the script doesn't need to know anything about modified-since, because that checks has long since been passed. This is all an issue between browser and server, and php can't interfere in between those. However, to do something about it, change the headers that you send abou caching. These are the pragma headers for HTTP/1.0 (?), and the Cache-Control headers in HTTP/1.1 //Anders -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images doesn't seem to cache
Hi, I put all my images outside the web root, the prevent direct access, and then access them with a img-tag like this: img src=fnc_get_image.php?path=?=$path;? / where fnc_get_image.php is: // Check if user is logged in require_once 'global_includes.php'; $user = new User(); // Get path to image for display $path = $_GET['path']; // Prepend path - prevents misuse $pPath = /home/username/albums/ . $path; header(Cache-Control: private); $extention = substr($path, -3); if ($extention == jpg) header(Content-type: image/jpeg); if ($extention == gif) header(Content-type: image/gif); if ($extention == bmp) header(Content-type: image/bmp); if ($extention == png) header(Content-type: image/png); readfile($pPath); There is one slight problem though: To my eyes, it looks like the images are downloaded from the server every time. Is this a side effect of this method or is it just a optical illusion? Is there a way to tell for sure if the image is downloaded or displayed from the browser cache? I've tried with and without a Cache-Control header. It doesn't seem to do any difference at all. Best regards, Anders -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images doesn't seem to cache
anders thoresson wrote: Hi, I put all my images outside the web root, the prevent direct access, and then access them with a img-tag like this: img src=fnc_get_image.php?path=?=$path;? / where fnc_get_image.php is: // Check if user is logged in require_once 'global_includes.php'; $user = new User(); // Get path to image for display $path = $_GET['path']; // Prepend path - prevents misuse $pPath = /home/username/albums/ . $path; header(Cache-Control: private); $extention = substr($path, -3); if ($extention == jpg) header(Content-type: image/jpeg); if ($extention == gif) header(Content-type: image/gif); if ($extention == bmp) header(Content-type: image/bmp); if ($extention == png) header(Content-type: image/png); readfile($pPath); There is one slight problem though: To my eyes, it looks like the images are downloaded from the server every time. Is this a side effect of this method or is it just a optical illusion? Is there a way to tell for sure if the image is downloaded or displayed from the browser cache? I've tried with and without a Cache-Control header. It doesn't seem to do any difference at all. Your eyes are fine. You need to check for If-Modified-Since header, if the time is older than file modification time (filemtime()) send Last-Modified header and the image, else send 304 Not Modified response. HTH -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images in PHP and MySQL
On Friday 01 October 2004 05:52, Ed Lazor wrote: Images take up more space when stored in the db, because you're storing raw binary data. Gif and jpeg are compression methods that convert binary data into something smaller that can be stored in a file. ?? If you store a jpeg file into a database blob, the database doesn't magically decompress the jpeg file. It will just treat the jpeg file as any other binary file and store it as-is (plus any overhead). Sorry for not responding sooner - just found this message while cleaning on my PHP folder. Anyway, we're both right, depending on how you go about saving the images to the database. You're talking about using PHP's file functions to open the image file, read in the data, and stream it to the database. I'm talking about using the built-in GD functions to grab the image (like imagecreatefromjpeg) and store it into the database. As you're pointing out, the GD functions are performing the compression and decompression. This was part of another discussion GH and I were having on the MySQL list about different approaches to storing large collections of images. Sorry, I should have mentioned that. -Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
No problem Ed thanks... Actually I was supprised to see this conversation (thread) come back into my GMAIL inbox On Wed, 6 Oct 2004 15:57:12 -0700, Ed Lazor [EMAIL PROTECTED] wrote: On Friday 01 October 2004 05:52, Ed Lazor wrote: Images take up more space when stored in the db, because you're storing raw binary data. Gif and jpeg are compression methods that convert binary data into something smaller that can be stored in a file. ?? If you store a jpeg file into a database blob, the database doesn't magically decompress the jpeg file. It will just treat the jpeg file as any other binary file and store it as-is (plus any overhead). Sorry for not responding sooner - just found this message while cleaning on my PHP folder. Anyway, we're both right, depending on how you go about saving the images to the database. You're talking about using PHP's file functions to open the image file, read in the data, and stream it to the database. I'm talking about using the built-in GD functions to grab the image (like imagecreatefromjpeg) and store it into the database. As you're pointing out, the GD functions are performing the compression and decompression. This was part of another discussion GH and I were having on the MySQL list about different approaches to storing large collections of images. Sorry, I should have mentioned that. -Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
If you're uploading a file then you can make a script that reads the temp file into the database (otherwise you need to muck around with image functions and I'm not the one to ask about that), something like: $image = mysql_escape_string(fread(fopen($_FILES['file']['tmp_name'], r), filesize($_FILES['file']['tmp_name']))); Then you just put $image in the db under a BLOG field type. This is what I did when I needed to save some images to a db and it seemed to work fine. Make sure you save the file type to the database so you can display the image properly. When you are ready to display an image, just create the html for an image and set the source to a php script that will output the image: img src=scripts/display_image.php?id=1 And in the display_image.php script do something like this: ? ...DB QUERY... $type = $row['file_type']; $dfile = $row['file_data']; header(Content-Type: $type); header(Content-Disposition: filename=.basename($dfile).;); header(Content-Length: .filesize($dfile)); readfile($dfile); exit; ? That code was modified a bit from its origional function (forcing download of the file) but I think it should just work, but there's always the chance I messed it up somehow. hope that works for someone, -Jasper Howard On Mon, 27 Sep 2004 19:05:16 -0500, Jim Grill [EMAIL PROTECTED] wrote: 1) there is no need to fiddle with directory permissions to write images. 2) if the content is sensitive you have the added security of the database password (and the fact that the database is ususally not directly accessible). 3) a mysqldump gives a backup of all images along with other persistent data Other disadvantages follow: 1) excessive load on the server for loading each image 2) the load mentioned above causes a slow down in the script 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. That's a very good list. I just wanted to pipe in on this one thing: 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. There is actually a function for this: imagecreatefromstring() I'll don't want to touch the rest of this topic though. :-) Jim Grill -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Jasper Howard - Database Administration ApexEleven.com 530 559 0107 --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
HEre is a question that I have been wondering about: - Does the image file use more space in the db or as a file itself (Do Not count the extra data that one would store in the db along with the image... ie. ID number) Thanks On Thu, 30 Sep 2004 09:55:30 -0700, Jasper Howard [EMAIL PROTECTED] wrote: If you're uploading a file then you can make a script that reads the temp file into the database (otherwise you need to muck around with image functions and I'm not the one to ask about that), something like: $image = mysql_escape_string(fread(fopen($_FILES['file']['tmp_name'], r), filesize($_FILES['file']['tmp_name']))); Then you just put $image in the db under a BLOG field type. This is what I did when I needed to save some images to a db and it seemed to work fine. Make sure you save the file type to the database so you can display the image properly. When you are ready to display an image, just create the html for an image and set the source to a php script that will output the image: img src=scripts/display_image.php?id=1 And in the display_image.php script do something like this: ? ...DB QUERY... $type = $row['file_type']; $dfile = $row['file_data']; header(Content-Type: $type); header(Content-Disposition: filename=.basename($dfile).;); header(Content-Length: .filesize($dfile)); readfile($dfile); exit; ? That code was modified a bit from its origional function (forcing download of the file) but I think it should just work, but there's always the chance I messed it up somehow. hope that works for someone, -Jasper Howard On Mon, 27 Sep 2004 19:05:16 -0500, Jim Grill [EMAIL PROTECTED] wrote: 1) there is no need to fiddle with directory permissions to write images. 2) if the content is sensitive you have the added security of the database password (and the fact that the database is ususally not directly accessible). 3) a mysqldump gives a backup of all images along with other persistent data Other disadvantages follow: 1) excessive load on the server for loading each image 2) the load mentioned above causes a slow down in the script 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. That's a very good list. I just wanted to pipe in on this one thing: 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. There is actually a function for this: imagecreatefromstring() I'll don't want to touch the rest of this topic though. :-) Jim Grill -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Jasper Howard - Database Administration ApexEleven.com 530 559 0107 --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images in PHP and MySQL
[snip] HEre is a question that I have been wondering about: - Does the image file use more space in the db or as a file itself (Do Not count the extra data that one would store in the db along with the image... ie. ID number) [/snip] While better asked on a SQL list, I'll give you an answer from http://dev.mysql.com/doc/mysql/en/Storage_requirements.html VARCHAR and the BLOB and TEXT types are variable-length types. For each, the storage requirements depend on the actual length of column values (represented by L in the preceding table), rather than on the type's maximum possible size. For example, a VARCHAR(10) column can hold a string with a maximum length of 10 characters. The actual storage required is the length of the string (L), plus 1 byte to record the length of the string. For the string 'abcd', L is 4 and the storage requirement is 5 bytes. The BLOB and TEXT types require 1, 2, 3, or 4 bytes to record the length of the column value, depending on the maximum possible length of the type. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
I'm not any kind of expert on this, but you just read the file byte for byte, dont you? So it should be the same amount of data. On Thu, 30 Sep 2004 15:51:28 -0400, GH [EMAIL PROTECTED] wrote: HEre is a question that I have been wondering about: - Does the image file use more space in the db or as a file itself (Do Not count the extra data that one would store in the db along with the image... ie. ID number) Thanks On Thu, 30 Sep 2004 09:55:30 -0700, Jasper Howard [EMAIL PROTECTED] wrote: If you're uploading a file then you can make a script that reads the temp file into the database (otherwise you need to muck around with image functions and I'm not the one to ask about that), something like: $image = mysql_escape_string(fread(fopen($_FILES['file']['tmp_name'], r), filesize($_FILES['file']['tmp_name']))); Then you just put $image in the db under a BLOG field type. This is what I did when I needed to save some images to a db and it seemed to work fine. Make sure you save the file type to the database so you can display the image properly. When you are ready to display an image, just create the html for an image and set the source to a php script that will output the image: img src=scripts/display_image.php?id=1 And in the display_image.php script do something like this: ? ...DB QUERY... $type = $row['file_type']; $dfile = $row['file_data']; header(Content-Type: $type); header(Content-Disposition: filename=.basename($dfile).;); header(Content-Length: .filesize($dfile)); readfile($dfile); exit; ? That code was modified a bit from its origional function (forcing download of the file) but I think it should just work, but there's always the chance I messed it up somehow. hope that works for someone, -Jasper Howard On Mon, 27 Sep 2004 19:05:16 -0500, Jim Grill [EMAIL PROTECTED] wrote: 1) there is no need to fiddle with directory permissions to write images. 2) if the content is sensitive you have the added security of the database password (and the fact that the database is ususally not directly accessible). 3) a mysqldump gives a backup of all images along with other persistent data Other disadvantages follow: 1) excessive load on the server for loading each image 2) the load mentioned above causes a slow down in the script 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. That's a very good list. I just wanted to pipe in on this one thing: 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. There is actually a function for this: imagecreatefromstring() I'll don't want to touch the rest of this topic though. :-) Jim Grill -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Jasper Howard - Database Administration ApexEleven.com 530 559 0107 --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Jasper Howard - Database Administration ApexEleven.com 530 559 0107 --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images in PHP and MySQL
Images take up more space when stored in the db, because you're storing raw binary data. Gif and jpeg are compression methods that convert binary data into something smaller that can be stored in a file. The recent tests I did took 270megs of images and stored them into 180megs of jpg files. -Ed -Original Message- HEre is a question that I have been wondering about: - Does the image file use more space in the db or as a file itself (Do Not count the extra data that one would store in the db along with the image... ie. ID number) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
On Friday 01 October 2004 05:52, Ed Lazor wrote: Images take up more space when stored in the db, because you're storing raw binary data. Gif and jpeg are compression methods that convert binary data into something smaller that can be stored in a file. ?? If you store a jpeg file into a database blob, the database doesn't magically decompress the jpeg file. It will just treat the jpeg file as any other binary file and store it as-is (plus any overhead). -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* I went into a general store, and they wouldn't sell me anything specific. -- Steven Wright */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images in PHP and MySQL
I was wondering how to get images into and out of a Mysql database with in php... I do not have anything in my book... but was told it was possible. I have PHP 4.3.4 and mysql 4.0.18 Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
I don't. I have used it on several projects. One caveat I would offer is that this is much slower than one might think. Three possible advantages come from using this approach: 1) there is no need to fiddle with directory permissions to write images. 2) if the content is sensitive you have the added security of the database password (and the fact that the database is ususally not directly accessible). 3) a mysqldump gives a backup of all images along with other persistent data Other disadvantages follow: 1) excessive load on the server for loading each image 2) the load mentioned above causes a slow down in the script 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. I have found that when I decide to store image data in the database I will usually also store a copy of the image on the server (as a file) also, primarily for performance reasons. - Original Message - From: GH [EMAIL PROTECTED] To: Daniel Watrous [EMAIL PROTECTED] Cc: GH [EMAIL PROTECTED] Sent: Monday, September 27, 2004 4:31 PM Subject: Re: [PHP] Images in PHP and MySQL Do you know of a good tutorial on this topic. On Mon, 27 Sep 2004 16:25:15 -0600, Daniel Watrous [EMAIL PROTECTED] wrote: consider using a blob field type. you will need to prepare your data on the way in, but not on the way out of DB: $content = addslashes(fread(fopen($_FILES[imgb_sizedesc][tmp_name], r), filesize($_FILES[imgb_sizedesc][tmp_name]))); then instert $content into your DB using insert! - Original Message - From: GH [EMAIL PROTECTED] To: php-general [EMAIL PROTECTED] Sent: Monday, September 27, 2004 4:19 PM Subject: [PHP] Images in PHP and MySQL I was wondering how to get images into and out of a Mysql database with in php... I do not have anything in my book... but was told it was possible. I have PHP 4.3.4 and mysql 4.0.18 Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images in PHP and MySQL
I'm no certified expert, but preference would be storing a URL to an image in the database rather than the image itself. If however you do want to store them in the db try using a blob column type. This article is PHP3 but shows the basics: http://www.phpbuilder.com/columns/florian19991014.php3 HTH Graham -Original Message- From: GH [mailto:[EMAIL PROTECTED] Sent: 27 September 2004 23:19 To: php-general Subject: [PHP] Images in PHP and MySQL I was wondering how to get images into and out of a Mysql database with in php... I do not have anything in my book... but was told it was possible. I have PHP 4.3.4 and mysql 4.0.18 Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
I hope that there are others out there that could weigh in on this topic please The more information and perspective I have the better as it would help me build the most informed decision as posible. On Mon, 27 Sep 2004 23:49:33 +0100, Graham Cossey [EMAIL PROTECTED] wrote: I'm no certified expert, but preference would be storing a URL to an image in the database rather than the image itself. If however you do want to store them in the db try using a blob column type. This article is PHP3 but shows the basics: http://www.phpbuilder.com/columns/florian19991014.php3 HTH Graham -Original Message- From: GH [mailto:[EMAIL PROTECTED] Sent: 27 September 2004 23:19 To: php-general Subject: [PHP] Images in PHP and MySQL I was wondering how to get images into and out of a Mysql database with in php... I do not have anything in my book... but was told it was possible. I have PHP 4.3.4 and mysql 4.0.18 Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in PHP and MySQL
1) there is no need to fiddle with directory permissions to write images. 2) if the content is sensitive you have the added security of the database password (and the fact that the database is ususally not directly accessible). 3) a mysqldump gives a backup of all images along with other persistent data Other disadvantages follow: 1) excessive load on the server for loading each image 2) the load mentioned above causes a slow down in the script 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. That's a very good list. I just wanted to pipe in on this one thing: 3) images usually need to be written to file before using GD for manipulation, inclusion in PDFs, etc. There is actually a function for this: imagecreatefromstring() I'll don't want to touch the rest of this topic though. :-) Jim Grill -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images outside of document root
I want to keep an entire library OUTSIDE of the document root. The library includes some imgages. How can I have the browser include the imageges? I've hard of BASE64'ing the images into the header and decoding them using javascript. Is this the best way? Where is code to do that? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] images outside of document root
* Thus wrote Dennis Gearon:
I want to keep an entire library OUTSIDE of the document root. The library
includes some imgages. How can I have the browser include the imageges?
I've hard of BASE64'ing the images into the header and decoding them using
javascript. Is this the best way? Where is code to do that?
no, its probably the worst way.
To have the browser reference images outside the document root
you'll have to create a php wrapper function that decides on what
to do:
img src=/showimage.php?file=foobar.jpg
showimage.php:
?php
$file = $_GET['file'];
// authentication if needed...
// check for valid file, etc..
header('Content-Type: image/jpeg'); // send right content type
readfile($path_outside_docroot . $file);
Curt
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Re: [PHP] images outside of document root
I may do that, but the 'showimage.php' file then has to be in the
document root, and can be attacked a LOT.
I have found ways to do inline images, without javascript, I believe.
Curt Zirzow [EMAIL PROTECTED] wrote:
* Thus wrote Dennis Gearon:
I want to keep an entire library OUTSIDE of the document root. The library
includes some imgages. How can I have the browser include the imageges?
I've hard of BASE64'ing the images into the header and decoding them using
javascript. Is this the best way? Where is code to do that?
no, its probably the worst way.
To have the browser reference images outside the document root
you'll have to create a php wrapper function that decides on what
to do:
img src=/showimage.php?file=foobar.jpg
showimage.php:
?php
$file = $_GET['file'];
// authentication if needed...
// check for valid file, etc..
header('Content-Type: image/jpeg'); // send right content type
readfile($path_outside_docroot . $file);
--
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Re: [PHP] images outside of document root
I use a system like that described below, however I added some checks to
thwart attack.
first, the image serving script checks to make sure the user has a session
id. This prevents people just loading the script to get the images, and
also deters hot linking.
second, I have a script that runs once an hour and generates a random word
and saves it to a text file. That file is read by the page that calls the
image serving script, and the word contained within is md5 hashed, then
passed to the image serving script like this:
img src='imgserv.php?i=joe.jpgh=fc5e038d38a57032085441e7fe7010b0' border=0
the image serving script then loads the same text file, hashes the word
within and compares the hashes. If they don't match, the link is over an
hour old and the image isn't served.
I know there are circumstances where an image can be hotlinked and
viewable, but the hotlink only works for an hour, and only for people who
have actually visited my site during their current browser session, and
this I can live with.
Keith
At 01:20 PM 7/6/2004, Dennis Gearon wrote:
I may do that, but the 'showimage.php' file then has to be in the document
root, and can be attacked a LOT.
I have found ways to do inline images, without javascript, I believe.
Curt Zirzow [EMAIL PROTECTED] wrote:
* Thus wrote Dennis Gearon:
I want to keep an entire library OUTSIDE of the document root. The
library includes some imgages. How can I have the browser include the imageges?
I've hard of BASE64'ing the images into the header and decoding them
using javascript. Is this the best way? Where is code to do that?
no, its probably the worst way.
To have the browser reference images outside the document root
you'll have to create a php wrapper function that decides on what
to do:
img src=/showimage.php?file=foobar.jpg
showimage.php:
?php
$file = $_GET['file'];
// authentication if needed...
// check for valid file, etc..
header('Content-Type: image/jpeg'); // send right content type
readfile($path_outside_docroot . $file);
--
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[PHP] Images PHP
Hi, I've created a small program that allows users to upload an image, and then resize that image one or more times depending on the desired outcome (once for web documents, twice for photo galleries, etc). Anyways, it seems that a large number of my clients are using older digital cameras to show case their businesses (most often resorts). This usually means taking pictures in poor lighting conditions which leaves the images either so black you can't see anything or completely washed out. I've seen a few functions on php.net that speak of changing color options, but so far these seem to be simple make this purple square red now types. Is there something built into PHP, or a 3rd party function that I'm not aware of, that would do simple color correction on uploaded files? I'm looking for a very quick and cheap auto levels like function found within Photoshop. Any idea if this is even possible? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images PHP
dont know that much about images at the minute but phpclasses.org has tons of image classes that might help... - Original Message - From: Tim Thorburn [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, April 19, 2004 7:12 PM Subject: [PHP] Images PHP Hi, I've created a small program that allows users to upload an image, and then resize that image one or more times depending on the desired outcome (once for web documents, twice for photo galleries, etc). Anyways, it seems that a large number of my clients are using older digital cameras to show case their businesses (most often resorts). This usually means taking pictures in poor lighting conditions which leaves the images either so black you can't see anything or completely washed out. I've seen a few functions on php.net that speak of changing color options, but so far these seem to be simple make this purple square red now types. Is there something built into PHP, or a 3rd party function that I'm not aware of, that would do simple color correction on uploaded files? I'm looking for a very quick and cheap auto levels like function found within Photoshop. Any idea if this is even possible? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images
hello
I'm using the following function from the php manual (user's posts) and get
the following error.
What I do is upload a file from the user and save it in the server; that's
working fine; what I want is to save a copy of the file in thumbnail size.
-
function resampimagejpg($forcedwidth, $forcedheight, $sourcefile, $destfile,$imgcomp)
{
$g_imgcomp=100-$imgcomp;
$g_srcfile=$sourcefile;
$g_dstfile=$destfile;
$g_fw=$forcedwidth;
$g_fh=$forcedheight;
if(file_exists($g_srcfile))
{
$g_is=getimagesize($g_srcfile);
if(($g_is[0]-$g_fw)=($g_is[1]-$g_fh))
{
$g_iw=$g_fw;
$g_ih=($g_fw/$g_is[0])*$g_is[1];
}
else
{
$g_ih=$g_fh;
$g_iw=($g_ih/$g_is[1])*$g_is[0];
}
$img_src=imagecreatefromjpeg($g_srcfile);
$img_dst=imagecreate($g_iw,$g_ih);
imagecopyresampled($img_dst, $img_src, 0, 0, 0, 0, $g_iw, $g_ih,$g_is[0],
$g_is[1]);
imagejpeg($img_dst, $g_dstfile, $g_imgcomp);
imagedestroy($img_dst);
return true;
}
else
return false;
}
--
** This is where I call the function:
$archivo = $forma['imagen']['tmp_name'];
echo(bFile Uploaded Information:/b br . $archivo . br);
if(is_uploaded_file($archivo)) {
$directo = /home/public_html/img_products/;
$archivito = $directo . $forma['imagen']['name'];
$archivote = /home/public_html/img_small_products/ .
$forma['imagen']['name']; //
echo br . $archivito . hr;
move_uploaded_file($forma['imagen']['tmp_name'],$archivito) ;
resampimagejpg(100, 100, $archivito, $archivote, 0);
= Here I call the function
--
This is the error I get:
Warning: imagejpeg(): Unable to open '/home/public_html/img_small_products/A2_6.jpg'
for writing in /home/public_html/admin/products.php on line 286
any idea? Thanks!
max
Re: [PHP] Images in MySQL vs directory/file?
Thanks for the feedback. Just to clear up a couple questions regarding my particular needs... 1. server has *plenty* of capacity 2. traffic is *very* low; max load would be 20 visitors looking at 4 images apiece over a 4-hour period 3. images will only be retrieved once or twice by one or two different browsers, over the period of a week (then they will be deleted). 4. I *don't* need, or want, the files to be backed up It seems to me that I can get more/better control over the tracking and use of the images if I store them in the DB. On the other hand, the 'simple' solution to the open directory problem is to put it outside the www root and fread the file from there to spit out to the browsers. I'm going to go with the database option for now, despite the fact that it will include the stuff in backups if I do, for a couple of selfish reasons: I've already got the code written and working, while moving the directory around and having to fread and then puke out the data will be more work, and I *do* have more control/access over database records than I do server directories. Thanks for everyone's help! -Derrick -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images in MySQL vs directory/file?
Slightly OT, but I'm hoping for a few opinions about handling JPG/MOV files with PHP/MySQL. I've read that, given the choice, you should never store images in a database because it makes the database dog slow. But I've got some parameters and issues that might make a difference: 1. The only way I can store the files in a directory on the server is to make that directory wide open as in chmod 777. I don't have quite enough control of the server to make that a better situation. 2. The images will only be stored temporarily - I'm looking at a maximum of 100Mb worth of JPG and MOV files (up to 80 1Mb JPG, up to 10 2Mb MOV files) being stored at any one time. So, am I going to run into performance issues with that amount of blob data in the database? The probability of a hack on my images directory is extremely low, but it *does* exist of course. Comments? Thanks, -Derrick -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in MySQL vs directory/file?
Hello Derrick, Wednesday, December 10, 2003, 3:56:32 PM, you wrote: DF 1. The only way I can store the files in a directory on the server is DF to make that directory wide open as in chmod 777. I don't have quite DF enough control of the server to make that a better situation. Why is this? More to the point.. is there somewhere else you could store them (i.e. a directory outside of the web root from which you could fread the files). DF 2. The images will only be stored temporarily - I'm looking at a DF maximum of 100Mb worth of JPG and MOV files (up to 80 1Mb JPG, up to 10 DF 2Mb MOV files) being stored at any one time. DF So, am I going to run into performance issues with that amount of blob DF data in the database? The probability of a hack on my images directory DF is extremely low, but it *does* exist of course. Performance is a very subjective term - are you putting this site on an overloaded shared box that might frown at such hammering of its MySQL server. Or are you hosting on a dedicated machine that has enough processing power to start the next cold war? You will of course hit performance issues, but the scale of them depends on factors outside of PHP/MySQL. I personally would investigate an alternative location to store them. -- Best regards, Richardmailto:[EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in MySQL vs directory/file?
Derrick Fogle wrote:
I've read that, given the choice, you should never store images in a
database because it makes the database dog slow. But I've got some
parameters and issues that might make a difference:
We (at hyperreal.info) are storing all the
images attached to articles in the database and
all the structural images (belonging to design)
in files on filesystem (in CVS). There are no
problems and backups are much easier...The server
runs on LAMP.
--
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Re: [PHP] Images in MySQL vs directory/file?
I tend to disagree. Images in the database, providing they actually
associate with other bits of info, are great. I usually keep images in
a separate table than the data, but it's really easy to keep track of
everything. No file permissions, backup is as easy as standard SQL
backups, etc. I my experience, it's a LOT easier to keep track of stuff
in the database than the filesystem, especially when it comes to moving
from box to box. There may also be some security advantages, too, as
the data is not actually stored in the filesystem and couldn't possibly
be executed or otherwise accessed by someone without database access
privileges.
As far as it being slow, well, not terribly as long as your files don't
balloon too large, especially considering all the stuff you might be
doing with the disk. If you store images that are played with a lot on
the disk, it'll likely be slower than MySQL due to MySQL having better
caching. (I have actually shown this on some of my projects that work
with a lot of images that are worked with quite a bit).
If your site is going to be high volume traffic, implement some sort of
caching routine for your images. You'll get the convenience of database
and the performance boost of caching, and as always, if the cache
fails, just hit the database for the information.
For your needs, give it a try. I doubt you'll have performance
problems, and you can always switch back to the filesystem if you do
have troubles.
-Galen
If you are going to be passing images
On Dec 10, 2003, at 10:32 AM, Adam i Agnieszka Gasiorowski FNORD wrote:
Derrick Fogle wrote:
I've read that, given the choice, you should never store images in a
database because it makes the database dog slow. But I've got some
parameters and issues that might make a difference:
We (at hyperreal.info) are storing all the
images attached to articles in the database and
all the structural images (belonging to design)
in files on filesystem (in CVS). There are no
problems and backups are much easier...The server
runs on LAMP.
--
Seks, seksi, seksolatki... news:pl.soc.seks.moderowana
http://hyperreal.info { iWanToDie } WiNoNa) (
http://szatanowskie-ladacznice.0-700.pl foReVeR( * )
Poznaj jej zwiewne ksztaty... http://www.opera.com 007
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Re: [PHP] Images in MySQL vs directory/file?
Galen wrote:
I tend to disagree. Images in the database, providing they actually
associate with other bits of info, are great. I usually keep images in a
separate table than the data, but it's really easy to keep track of
everything. No file permissions, backup is as easy as standard SQL
backups, etc. I my experience, it's a LOT easier to keep track of stuff
in the database than the filesystem, especially when it comes to moving
from box to box. There may also be some security advantages, too, as the
data is not actually stored in the filesystem and couldn't possibly be
executed or otherwise accessed by someone without database access
privileges.
As far as it being slow, well, not terribly as long as your files don't
balloon too large, especially considering all the stuff you might be
doing with the disk. If you store images that are played with a lot on
the disk, it'll likely be slower than MySQL due to MySQL having better
caching. (I have actually shown this on some of my projects that work
with a lot of images that are worked with quite a bit).
If your site is going to be high volume traffic, implement some sort of
caching routine for your images. You'll get the convenience of database
and the performance boost of caching, and as always, if the cache fails,
just hit the database for the information.
For your needs, give it a try. I doubt you'll have performance problems,
and you can always switch back to the filesystem if you do have troubles.
-Galen
If you are going to be passing images
On Dec 10, 2003, at 10:32 AM, Adam i Agnieszka Gasiorowski FNORD wrote:
Derrick Fogle wrote:
I've read that, given the choice, you should never store images in a
database because it makes the database dog slow. But I've got some
parameters and issues that might make a difference:
We (at hyperreal.info) are storing all the
images attached to articles in the database and
all the structural images (belonging to design)
in files on filesystem (in CVS). There are no
problems and backups are much easier...The server
runs on LAMP.
--
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I agree, storing images in the database can be a big help.
For caching, you may want to try PEAR's Cache package.
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Re: [PHP] Images in MySQL vs directory/file?
On Wednesday 10 December 2003 02:43 pm, Galen wrote: If you store images that are played with a lot on the disk, it'll likely be slower than MySQL due to MySQL having better caching. I disagree. Depending on your setup, when a file based image is downloaded to a user's computer, its cached there. No need to fetch it again, till it expires. I don't think thats possible via images from a database, but I may be wrong. Feel free to correct me... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images in MySQL vs directory/file?
Well, it seems to me that the confusion comes from the fact that we are comparing apples and oranges. The first example is talking about the performance assuming you have 100's of people requesting the same picture, where as the second example is talking about the performance assuming you have the same person re-downloading the same picture. But I would also like to question the extra layer. Not that MySQL doesn't have better caching, that is possible, but it adds and extra layer to the process because MySQL still stores the data on the drive. Also, does the web server cache images? If so, then we are ahead of the game even more. Just my ramblings on the subject and since I am not an expert at this whole PHP thing please correct me. Brian Goralczyk Verizon Wireless -Original Message- From: Gerard Samuel [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 10, 2003 3:35 PM To: [EMAIL PROTECTED] Subject: Re: [PHP] Images in MySQL vs directory/file? On Wednesday 10 December 2003 02:43 pm, Galen wrote: If you store images that are played with a lot on the disk, it'll likely be slower than MySQL due to MySQL having better caching. I disagree. Depending on your setup, when a file based image is downloaded to a user's computer, its cached there. No need to fetch it again, till it expires. I don't think thats possible via images from a database, but I may be wrong. Feel free to correct me... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in MySQL vs directory/file?
On Dec 10, 2003, at 12:47 PM, [EMAIL PROTECTED] wrote: Well, it seems to me that the confusion comes from the fact that we are comparing apples and oranges. I agree. Images in a database mean totally different things to different usage profiles. But I would also like to question the extra layer. Not that MySQL doesn't have better caching, that is possible, but it adds and extra layer to the process because MySQL still stores the data on the drive. Also, does the web server cache images? If so, then we are ahead of the game even more. I think the extra layer is a mixed blessing. Yes, it can slow things down. But at the same time, it can use caching to make up for the slowdown in many cases, especially when writing. What the extra layer provides is structure and ease of use and (depending on your setup) security. For many applications, the benefits outweigh the costs. There are certainly many applications (high traffic sites come to mind) where file-based is the way to go, or at least an extensive caching system would be required. From: Gerard Samuel [mailto:[EMAIL PROTECTED] I disagree. Depending on your setup, when a file based image is downloaded to a user's computer, its cached there. No need to fetch it again, till it expires. I don't think thats possible via images from a database, but I may be wrong. Feel free to correct me... Actually, the real problem these days with browsers is that you can't get them to STOP caching! At least in my experience, properly used headers don't even stop caching pages quite 100% of the time. If you retrieve an image from the database via url-encoded stuff (i.e. mysite.com/image.php?id=234) the browser will probably cache it no problem unless you send no-cache headers. This is obviously a bit of a hot issue. I think that anybody seriously interested in this should try it with his or her setup and see how it works. I bet that for most people, it won't be a big deal at all. But for a few others, if implemented across their whole site, it could cause lots of CPU usage problems. Give it a try. You might like it. -Galen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images in MySQL vs directory/file?
Gerard Samuel wrote: On Wednesday 10 December 2003 02:43 pm, Galen wrote: If you store images that are played with a lot on the disk, it'll likely be slower than MySQL due to MySQL having better caching. I disagree. Depending on your setup, when a file based image is downloaded to a user's computer, its cached there. No need to fetch it again, till it expires. I don't think thats possible via images from a database, but I may be wrong. Feel free to correct me... Images are cached client side just as html pages are. Scripts are no exception. A script which outputs an image will have the same URI over and over, so it will be cached. If the browser isn't cacheing as you want, you can always send a header telling the browser to cache it. -- paperCrane Justin Patrin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images On-Fly
Hallo People,
I have one problem with creating images on-fly.
Therefore I created 2 files:
1. resize_image.php with the following
?php
if (!$max_width)
$max_width = 150;
if (!$max_height)
$max_height = 100;
$size = GetImageSize($image);
$width = $size[0];
$height = $size[1];
$x_ratio = $max_width / $width;
$y_ratio = $max_height / $height;
if ( ($width = $max_width) ($height = $max_height) ) {
$tn_width = $width;
$tn_height = $height;
}
else if (($x_ratio * $height) $max_height) {
$tn_height = ceil($x_ratio * $height);
$tn_width = $max_width;
}
else {
$tn_width = ceil($y_ratio * $width);
$tn_height = $max_height;
}
$src = ImageCreateFromJpeg($image);
$dst = ImageCreate($tn_width,$tn_height);
ImageCopyResized($dst, $src, 0, 0, 0, 0,
$tn_width,$tn_height,$width,$height);
header(Content-type: image/jpeg);
ImageJpeg($dst, null, -1);
ImageDestroy($src);
ImageDestroy($dst);
?
AND
2. filex.php .In that file i read from database where the image is stored en
then i show small images(thumbnails).
thet part of the code is :
?php do { ?
tr
td width=156 height=32 valign=top?php echo
$row_rsSubGroup['name']; ?/td
td colspan=2 valign=top?php
$fotolink=../dbtest/.$row_rsSubGroup['image_1']);
echo IMG
SRC=\resize_image.php?image=$fotolink\;
?
/td
/tr
?php } while ($row_rsSubGroup = mysql_fetch_assoc($rsSubGroup)); ?
This doesn't WORK. Please HELP.
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Re: [PHP] Images On-Fly
On Wednesday 03 December 2003 17:41, Dejan Dujak wrote: [snip] This doesn't WORK. Please HELP. HOW DOESN'T it work? -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* Your reasoning powers are good, and you are a fairly good planner. */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images and charset
I put some text from my mysql-db into images(jpeg and png) that I build on the fly. When I do this I have som problem with norwegian spesial charakter, they dont show properly in the images. If I put the same text directly to the browser window this will show correctly. What do I need to do to get this right? thanks egil -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images being uploaded in ASCII format
Hi Tom.
make sure you have ENCTYPE=multipart/form-data in the form tag
Thanks for the tip, but that's not the problem. My code is below, and
as you can see there is nothing in the code that would be causing this.
It has to be something in the server, and while there have been a few
posts to these lists about this problem, never a resolution for the
problem.
Here's the code:
?php
function handleupload()
{
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/path/to/file/'.$realname))
{
echo 'br /'.$realname.' uploaded/font';
}
else
{
echo 'br /'.$realname.'could not be
uploaded/font';
}
}
else
{
echo 'br /Possible file upload attack: filename
'.$_FILES['userfile']['name'].'.';
}
}
?
html
head
titleFile Upload/title
/head
body
?php
if (isset($_POST['method']) $_POST['method'] == 'upload')
handleupload();
?
form ENCTYPE=multipart/form-data method=POST action=?php echo
$_SERVER['PHP_SELF']; ?
input type=hidden name=method value=upload
File:input type=file name=userfile size=35
input type=submit value=upload name=submit
/form
/body
/html
This is very standard code, yet the images are uploaded in ascii format.
Does anyone have any idea why this is happening? How can I for the http
uploads to auto-detect? I've looked through the entire php.ini and
httpd.conf files and I can't seem to find anything, and as I mentioned
above none of the previous posts on this topic have been resolved.
Anyone?
Thanks much in advance,
Pablo
Thursday, October 23, 2003, 4:05:13 AM, you wrote:
PG Hi all. I'd like to take a brief sentence to introduce myself
first.
PG My name is Pablo Gosse, and I've just recently joined the
php-general
PG list. I've been using PHP since early 2000, and work as webmaster
PG at the University of Northern British Columbia.
PG I'm running into a problem with file uploads being handled in ascii
PG rather than binary format.
PG I've been writing a CMS for the past few months and the wysiwyg
editor
PG we're integrating has a very nice image manager built in
PG (www.devedit.com). However, the uploads are being transferred in
ascii
PG format instead of binary (or auto-detect) which is mangling all the
PG images.
PG I've done a lot of research into this but can't seem to pin down the
PG problem. I've looked through both my php.ini and httpd.conf and
can't
PG seem to find anything there that would remedy this problem.
PG Does anyone have any advice as to where I should be looking to fix
this
PG problem?
PG Thanks much in advance.
PG Cheers,
PG Pablo
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Re: [PHP] Images being uploaded in ASCII format
Hi Pablo,
Could you explain what exactly you mean by transferred in ASCII mode? do
you find that cr/lf combinations are translated (there by corrupting
your image) or some other corruption takes place?
Have you opened the files with a hex editor to see the contents? I am
sorry if you have mentioned these before, i don't have the older
messages in this thread.
Pablo Gosse wrote:
Hi Tom.
make sure you have ENCTYPE=multipart/form-data in the form tag
Thanks for the tip, but that's not the problem. My code is below, and
as you can see there is nothing in the code that would be causing this.
It has to be something in the server, and while there have been a few
posts to these lists about this problem, never a resolution for the
problem.
Here's the code:
?php
function handleupload()
{
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/path/to/file/'.$realname))
{
echo 'br /'.$realname.' uploaded/font';
}
else
{
echo 'br /'.$realname.'could not be
uploaded/font';
}
}
else
{
echo 'br /Possible file upload attack: filename
'.$_FILES['userfile']['name'].'.';
}
}
?
html
head
titleFile Upload/title
/head
body
?php
if (isset($_POST['method']) $_POST['method'] == 'upload')
handleupload();
?
form ENCTYPE=multipart/form-data method=POST action=?php echo
$_SERVER['PHP_SELF']; ?
input type=hidden name=method value=upload
File:input type=file name=userfile size=35
input type=submit value=upload name=submit
/form
/body
/html
This is very standard code, yet the images are uploaded in ascii format.
Does anyone have any idea why this is happening? How can I for the http
uploads to auto-detect? I've looked through the entire php.ini and
httpd.conf files and I can't seem to find anything, and as I mentioned
above none of the previous posts on this topic have been resolved.
Anyone?
Thanks much in advance,
Pablo
Thursday, October 23, 2003, 4:05:13 AM, you wrote:
PG Hi all. I'd like to take a brief sentence to introduce myself
first.
PG My name is Pablo Gosse, and I've just recently joined the
php-general
PG list. I've been using PHP since early 2000, and work as webmaster
PG at the University of Northern British Columbia.
PG I'm running into a problem with file uploads being handled in ascii
PG rather than binary format.
PG I've been writing a CMS for the past few months and the wysiwyg
editor
PG we're integrating has a very nice image manager built in
PG (www.devedit.com). However, the uploads are being transferred in
ascii
PG format instead of binary (or auto-detect) which is mangling all the
PG images.
PG I've done a lot of research into this but can't seem to pin down the
PG problem. I've looked through both my php.ini and httpd.conf and
can't
PG seem to find anything there that would remedy this problem.
PG Does anyone have any advice as to where I should be looking to fix
this
PG problem?
PG Thanks much in advance.
PG Cheers,
PG Pablo
--
Raditha Dissanayake.
http://www.radinks.com/sftp/ | http://www.raditha/megaupload/
Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader
Graphical User Inteface. Just 150 KB | with progress bar.
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RE: [PHP] Images being uploaded in ASCII format
Hi Raditha. Thanks very much for your reply. I've not been having much
luck with this one.
This is how the images should appear:
http://web.unbc.ca/~gossep/sample_images/1.gif
http://web.unbc.ca/~gossep/sample_images/nav-02.jpg
And here is how they appear after being uploaded:
http://web.unbc.ca/~gossep/sample_images/1_uploaded.gif
http://web.unbc.ca/~gossep/sample_images/nav-02_uploaded.jpg
The results to me seem the same as if an image were FTPed in ascii mode
instead of binary mode (or auto-detect which would ultimately set the
mode to binary).
I just downloaded the XVI32 hex editor, but what should I be looking for
when I open the files and examine the contents?
Some other particulars to this situation:
I've tried uploading the same images through the demo site on the
company from which we purchased our editor (www.devedit.com) and they
upload fine, making me certain it's a system setting on my system
causing the problem.
My system is as follows:
Dell Precision 340 Workstation
RedHat 9.0
Apache 2.0
PHP 4.2.2
Thanks with your help, Raditha. Greatly appreciated.
Cheers,
Pablo
-Original Message-
From: Raditha Dissanayake [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 23, 2003 10:19 AM
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] Images being uploaded in ASCII format
Hi Pablo,
Could you explain what exactly you mean by transferred in ASCII mode? do
you find that cr/lf combinations are translated (there by corrupting
your image) or some other corruption takes place?
Have you opened the files with a hex editor to see the contents? I am
sorry if you have mentioned these before, i don't have the older
messages in this thread.
Pablo Gosse wrote:
Hi Tom.
make sure you have ENCTYPE=multipart/form-data in the form tag
Thanks for the tip, but that's not the problem. My code is below, and
as you can see there is nothing in the code that would be causing this.
It has to be something in the server, and while there have been a few
posts to these lists about this problem, never a resolution for the
problem.
Here's the code:
?php
function handleupload()
{
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/path/to/file/'.$realname))
{
echo 'br /'.$realname.' uploaded/font';
}
else
{
echo 'br /'.$realname.'could not be
uploaded/font';
}
}
else
{
echo 'br /Possible file upload attack: filename
'.$_FILES['userfile']['name'].'.';
}
}
?
html
head
titleFile Upload/title
/head
body
?php
if (isset($_POST['method']) $_POST['method'] == 'upload')
handleupload();
?
form ENCTYPE=multipart/form-data method=POST action=?php echo
$_SERVER['PHP_SELF']; ?
input type=hidden name=method value=upload
File:input type=file name=userfile size=35
input type=submit value=upload name=submit
/form
/body
/html
This is very standard code, yet the images are uploaded in ascii
format.
Does anyone have any idea why this is happening? How can I for the
http
uploads to auto-detect? I've looked through the entire php.ini and
httpd.conf files and I can't seem to find anything, and as I mentioned
above none of the previous posts on this topic have been resolved.
Anyone?
Thanks much in advance,
Pablo
Thursday, October 23, 2003, 4:05:13 AM, you wrote:
PG Hi all. I'd like to take a brief sentence to introduce myself
first.
PG My name is Pablo Gosse, and I've just recently joined the
php-general
PG list. I've been using PHP since early 2000, and work as webmaster
PG at the University of Northern British Columbia.
PG I'm running into a problem with file uploads being handled in ascii
PG rather than binary format.
PG I've been writing a CMS for the past few months and the wysiwyg
editor
PG we're integrating has a very nice image manager built in
PG (www.devedit.com). However, the uploads are being transferred in
ascii
PG format instead of binary (or auto-detect) which is mangling all the
PG images.
PG I've done a lot of research into this but can't seem to pin down
the
PG problem. I've looked through both my php.ini and httpd.conf and
can't
PG seem to find anything there that would remedy this problem.
PG Does anyone have any advice as to where I should be looking to fix
this
PG problem?
PG Thanks much in advance.
PG Cheers,
PG Pablo
--
Raditha Dissanayake.
http://www.radinks.com/sftp/ | http://www.raditha/megaupload/
Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader
Graphical User Inteface. Just 150 KB | with progress bar.
--
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To unsubscribe, visit: http://www.php.net/unsub.php
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To unsubscribe
Re: [PHP] Images being uploaded in ASCII format
Hi Pablo Pablo Gosse wrote: Hi Raditha. Thanks very much for your reply. I've not been having much luck with this one. welcome This is how the images should appear: http://web.unbc.ca/~gossep/sample_images/1.gif http://web.unbc.ca/~gossep/sample_images/nav-02.jpg And here is how they appear after being uploaded: http://web.unbc.ca/~gossep/sample_images/1_uploaded.gif http://web.unbc.ca/~gossep/sample_images/nav-02_uploaded.jpg 1.gif and 1_uploaded.gif differ by much as 4Kb in length! and the first difference occurs at byte number 1276. (I used cmp) The results to me seem the same as if an image were FTPed in ascii mode instead of binary mode (or auto-detect which would ultimately set the mode to binary). Though the output might look like that it's misleading because you are using HTTP post. Unfortunately PHP does not allow access to raw POST data, else this can be debugged by looking at that data. I will mail you (offlist) a small perl script that you can use to write out the POST to a temp file and may be help you get to the bottom of this. I just downloaded the XVI32 hex editor, but what should I be looking for when I open the files and examine the contents? Khexedit might be installed by default. all the best -- Raditha Dissanayake. http://www.radinks.com/sftp/ | http://www.raditha/megaupload/ Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader Graphical User Inteface. Just 150 KB | with progress bar. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images being uploaded in ASCII format
Something wrong is with your uploader program... look at this:
Content-Disposition: form-data; name=upload; filename=C:\Documents
and Settin
gs\gossep\Desktop\ewimages\1.gif
And if you look closer to the data in the file, you will see it has 2
GIF or something (GIF8 twice)... so yep, you have something really wrong
with your uploader.
El jue, 23-10-2003 a las 13:22, Pablo Gosse escribió:
Hi Raditha. Thanks very much for your reply. I've not been having much
luck with this one.
This is how the images should appear:
http://web.unbc.ca/~gossep/sample_images/1.gif
http://web.unbc.ca/~gossep/sample_images/nav-02.jpg
And here is how they appear after being uploaded:
http://web.unbc.ca/~gossep/sample_images/1_uploaded.gif
http://web.unbc.ca/~gossep/sample_images/nav-02_uploaded.jpg
The results to me seem the same as if an image were FTPed in ascii mode
instead of binary mode (or auto-detect which would ultimately set the
mode to binary).
I just downloaded the XVI32 hex editor, but what should I be looking for
when I open the files and examine the contents?
Some other particulars to this situation:
I've tried uploading the same images through the demo site on the
company from which we purchased our editor (www.devedit.com) and they
upload fine, making me certain it's a system setting on my system
causing the problem.
My system is as follows:
Dell Precision 340 Workstation
RedHat 9.0
Apache 2.0
PHP 4.2.2
Thanks with your help, Raditha. Greatly appreciated.
Cheers,
Pablo
-Original Message-
From: Raditha Dissanayake [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 23, 2003 10:19 AM
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] Images being uploaded in ASCII format
Hi Pablo,
Could you explain what exactly you mean by transferred in ASCII mode? do
you find that cr/lf combinations are translated (there by corrupting
your image) or some other corruption takes place?
Have you opened the files with a hex editor to see the contents? I am
sorry if you have mentioned these before, i don't have the older
messages in this thread.
Pablo Gosse wrote:
Hi Tom.
make sure you have ENCTYPE=multipart/form-data in the form tag
Thanks for the tip, but that's not the problem. My code is below, and
as you can see there is nothing in the code that would be causing this.
It has to be something in the server, and while there have been a few
posts to these lists about this problem, never a resolution for the
problem.
Here's the code:
?php
function handleupload()
{
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
$realname = $_FILES['userfile']['name'];
if(copy($_FILES['userfile']['tmp_name'],
'/path/to/file/'.$realname))
{
echo 'br /'.$realname.' uploaded/font';
}
else
{
echo 'br /'.$realname.'could not be
uploaded/font';
}
}
else
{
echo 'br /Possible file upload attack: filename
'.$_FILES['userfile']['name'].'.';
}
}
?
html
head
titleFile Upload/title
/head
body
?php
if (isset($_POST['method']) $_POST['method'] == 'upload')
handleupload();
?
form ENCTYPE=multipart/form-data method=POST action=?php echo
$_SERVER['PHP_SELF']; ?
input type=hidden name=method value=upload
File:input type=file name=userfile size=35
input type=submit value=upload name=submit
/form
/body
/html
This is very standard code, yet the images are uploaded in ascii
format.
Does anyone have any idea why this is happening? How can I for the
http
uploads to auto-detect? I've looked through the entire php.ini and
httpd.conf files and I can't seem to find anything, and as I mentioned
above none of the previous posts on this topic have been resolved.
Anyone?
Thanks much in advance,
Pablo
Thursday, October 23, 2003, 4:05:13 AM, you wrote:
PG Hi all. I'd like to take a brief sentence to introduce myself
first.
PG My name is Pablo Gosse, and I've just recently joined the
php-general
PG list. I've been using PHP since early 2000, and work as webmaster
PG at the University of Northern British Columbia.
PG I'm running into a problem with file uploads being handled in ascii
PG rather than binary format.
PG I've been writing a CMS for the past few months and the wysiwyg
editor
PG we're integrating has a very nice image manager built in
PG (www.devedit.com). However, the uploads are being transferred in
ascii
PG format instead of binary (or auto-detect) which is mangling all the
PG images.
PG I've done a lot of research into this but can't seem to pin down
the
PG problem. I've looked through both my php.ini and httpd.conf and
can't
PG seem to find anything there that would remedy this problem.
PG Does anyone have any advice as to where I should be looking to fix
this
PG problem?
PG
RE: [PHP] Images being uploaded in ASCII format
Thanks Raditha. At least now I know I've been looking in the wrong place! I'll look forward to the perl script to see if it sheds any more light on this situation. I'm currently running Windoze, but when I boot to Linux later I'll try Khexedit to see what I can come up with. Cheers, Pablo -Original Message- From: Raditha Dissanayake [mailto:[EMAIL PROTECTED] Sent: Thursday, October 23, 2003 10:48 AM To: [EMAIL PROTECTED] Subject: Re: [PHP] Images being uploaded in ASCII format Hi Pablo Pablo Gosse wrote: Hi Raditha. Thanks very much for your reply. I've not been having much luck with this one. welcome This is how the images should appear: http://web.unbc.ca/~gossep/sample_images/1.gif http://web.unbc.ca/~gossep/sample_images/nav-02.jpg And here is how they appear after being uploaded: http://web.unbc.ca/~gossep/sample_images/1_uploaded.gif http://web.unbc.ca/~gossep/sample_images/nav-02_uploaded.jpg 1.gif and 1_uploaded.gif differ by much as 4Kb in length! and the first difference occurs at byte number 1276. (I used cmp) The results to me seem the same as if an image were FTPed in ascii mode instead of binary mode (or auto-detect which would ultimately set the mode to binary). Though the output might look like that it's misleading because you are using HTTP post. Unfortunately PHP does not allow access to raw POST data, else this can be debugged by looking at that data. I will mail you (offlist) a small perl script that you can use to write out the POST to a temp file and may be help you get to the bottom of this. I just downloaded the XVI32 hex editor, but what should I be looking for when I open the files and examine the contents? Khexedit might be installed by default. all the best -- Raditha Dissanayake. http://www.radinks.com/sftp/ | http://www.raditha/megaupload/ Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader Graphical User Inteface. Just 150 KB | with progress bar. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Images being uploaded in ASCII format
Hi, Friday, October 24, 2003, 2:11:43 AM, you wrote: PG Hi Tom. make sure you have ENCTYPE=multipart/form-data in the form tag PG Thanks for the tip, but that's not the problem. My code is below, and PG as you can see there is nothing in the code that would be causing this. PG It has to be something in the server, and while there have been a few PG posts to these lists about this problem, never a resolution for the PG problem. What operating system is the server running on? -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re[2]: [PHP] Images being uploaded in ASCII format
Hi, Friday, October 24, 2003, 2:11:43 AM, you wrote: PG Hi Tom. make sure you have ENCTYPE=multipart/form-data in the form tag PG Thanks for the tip, but that's not the problem. My code is below, and PG as you can see there is nothing in the code that would be causing this. PG It has to be something in the server, and while there have been a few PG posts to these lists about this problem, never a resolution for the PG problem. PG Here's the code: Another thing is to try move_uploaded_file() instead of copy, if your server is on windows copy maybe doing strange things as copy needs /b to indicate binary, just a guess. -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images being uploaded in ASCII format
Pablo Gosse wrote: Hi Raditha. Thanks very much for your reply. I've not been having much luck with this one. This is how the images should appear: http://web.unbc.ca/~gossep/sample_images/1.gif http://web.unbc.ca/~gossep/sample_images/nav-02.jpg And here is how they appear after being uploaded: http://web.unbc.ca/~gossep/sample_images/1_uploaded.gif http://web.unbc.ca/~gossep/sample_images/nav-02_uploaded.jpg The results to me seem the same as if an image were FTPed in ascii mode instead of binary mode (or auto-detect which would ultimately set the mode to binary). Use strings to look at the files. This: yPZ-7d33511600b6 Content-Disposition: form-data; name=upload; filename=C:\Documents and Settings\gossep\Desktop\ewimages\1.gif Content-Type: image/gif GIF89a certainly doesn't belong in the image. Apache 2.0 PHP 4.2.2 PHP 4.2.2 is 300 years old - I'm surprised that Apache 2 existed back then. See http://www.php.net/manual/en/install.apache2.php. Regards... Michael -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images being uploaded in ASCII format
Hi all. I'd like to take a brief sentence to introduce myself first. My name is Pablo Gosse, and I've just recently joined the php-general list. I've been using PHP since early 2000, and work as webmaster at the University of Northern British Columbia. I'm running into a problem with file uploads being handled in ascii rather than binary format. I've been writing a CMS for the past few months and the wysiwyg editor we're integrating has a very nice image manager built in (www.devedit.com). However, the uploads are being transferred in ascii format instead of binary (or auto-detect) which is mangling all the images. I've done a lot of research into this but can't seem to pin down the problem. I've looked through both my php.ini and httpd.conf and can't seem to find anything there that would remedy this problem. Does anyone have any advice as to where I should be looking to fix this problem? Thanks much in advance. Cheers, Pablo --- Pablo Gosse Webmaster University of Northern British Columbia 250.960.5621 [EMAIL PROTECTED] --- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images being uploaded in ASCII format
Hi, Thursday, October 23, 2003, 4:05:13 AM, you wrote: PG Hi all. I'd like to take a brief sentence to introduce myself first. PG My name is Pablo Gosse, and I've just recently joined the php-general PG list. I've been using PHP since early 2000, and work as webmaster PG at the University of Northern British Columbia. PG I'm running into a problem with file uploads being handled in ascii PG rather than binary format. PG I've been writing a CMS for the past few months and the wysiwyg editor PG we're integrating has a very nice image manager built in PG (www.devedit.com). However, the uploads are being transferred in ascii PG format instead of binary (or auto-detect) which is mangling all the PG images. PG I've done a lot of research into this but can't seem to pin down the PG problem. I've looked through both my php.ini and httpd.conf and can't PG seem to find anything there that would remedy this problem. PG Does anyone have any advice as to where I should be looking to fix this PG problem? PG Thanks much in advance. PG Cheers, PG Pablo make sure you have ENCTYPE=multipart/form-data in the form tag -- regards, Tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images with gd for printing?
Hi there, I want to create images with GD and freetype ttf which are good enough for printing .. about 150 dpi. Does anybody know how to output the jpg with a higher resolution and a determined output size? Thanx in advance, merlin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Graduated fills using PHP Images
Hi all! Is it possible to have PHP creates an image that graduates 1 color to another, such as create and images 100 pixels wide and in height which fades red to green top to bottom? Any help or suggestions would be really helpful. Thanks Adrian [EMAIL PROTECTED]
RE: [PHP] Graduated fills using PHP Images
[snip] Is it possible to have PHP creates an image that graduates 1 color to another, such as create and images 100 pixels wide and in height which fades red to green top to bottom? [/snip] http://us3.php.net/image You could set the color index and the loop through (while incrementing) each new index. Seems awfully intensive though. I know that jpgraph (http://www.aditus.nu/jpgraph/) can use gradiated backgrounds for some of its output...perhaps you could look at the code included with the class HTH! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Graduated fills using PHP Images
At 2003-08-15 08:14 -0400, Adrian wrote: Is it possible to have PHP creates an image that graduates 1 color to another, such as create and images 100 pixels wide and in height which fades red to green top to bottom? It's possible. I have just been experimenting with it using ImageCreateTrueColor(). See the manual: http://www.php.net/manual/en/function.imagecreatetruecolor.php You still have to use ImageColorAllocate() to get a color but you can deallocate it right after usage and you can use as many colors as you like (whereas with normal 256 color images you can't use more than 256). The process didn't noticably slow my 1 Ghz PC down. I made some nice fades in two directions too: http://www.chipdir.nl/adprov/adb/cdb/468_60/08en.png BTW. I made it look like the upper text has been pressed downward into the material and the lower text has been pressed upward out of the material. (Using alpha channel coloring.) Let me know if you want to see the source code... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] images in databases Flash via PHP
There a few different ways to do this. One method that we use here is to do something like this in the embed/object tags flash.swf?image=?php echo $image; ? The php $image variable, of course, could be set by any method (post/get, db query, etc...) Luis -Original Message- From: Tim Baker [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 22, 2003 12:01 PM To: '[EMAIL PROTECTED]' Subject: [PHP] images in databases Flash via PHP I was wondering - are there any good tutorials/examples of serving updating images from a mySQL database via PHP? I assume this is possible, but I'm almost a newbie having not used PHP/mySQL for ages with some knowledge but would like to know more... Also now Flash MX can dynamically take JPEGs and MPEGs in 'dynamically' at runtime now, anyone combined this with PHP/mySQL to serve images? (I'd guess someone or many people have :-) I've done it from the Flash only side, loading variables and images/music, building modular duplicated movieclips etc. and want to do the next step which is to combine that with databases (I'm currently using text files, files on a webserver etc.) thanks Tim Baker -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images in databases Flash via PHP
I was wondering - are there any good tutorials/examples of serving updating images from a mySQL database via PHP? I assume this is possible, but I'm almost a newbie having not used PHP/mySQL for ages with some knowledge but would like to know more... Also now Flash MX can dynamically take JPEGs and MPEGs in 'dynamically' at runtime now, anyone combined this with PHP/mySQL to serve images? (I'd guess someone or many people have :-) I've done it from the Flash only side, loading variables and images/music, building modular duplicated movieclips etc. and want to do the next step which is to combine that with databases (I'm currently using text files, files on a webserver etc.) thanks Tim Baker -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] images in databases Flash via PHP
Saving Images in MySQL http://www.weberdev.com/ViewArticle.php3?ArticleID=3 Sincerely berber Visit http://www.weberdev.com/ Today!!! To see where PHP might take you tomorrow. Share your code : http://addexample.weberdev.com -Original Message- From: Tim Baker [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 22, 2003 7:01 PM To: '[EMAIL PROTECTED]' Subject: [PHP] images in databases Flash via PHP I was wondering - are there any good tutorials/examples of serving updating images from a mySQL database via PHP? I assume this is possible, but I'm almost a newbie having not used PHP/mySQL for ages with some knowledge but would like to know more... Also now Flash MX can dynamically take JPEGs and MPEGs in 'dynamically' at runtime now, anyone combined this with PHP/mySQL to serve images? (I'd guess someone or many people have :-) I've done it from the Flash only side, loading variables and images/music, building modular duplicated movieclips etc. and want to do the next step which is to combine that with databases (I'm currently using text files, files on a webserver etc.) thanks Tim Baker -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] images..
I asked this question last week and thought I had it fixed but it still
doesn't seem to work. I use the code below to allow the user to upload
their images, once uploaded the images don't look nearly as good as they did
before uploading. Another interesting thing is that if you right click on
the images, they don't give you the option of saving the image, only saving
as background but maybe that is because they are jpegs. Do I need to use a
higher resolution picture?
if(!empty($myimage)){
$id=$HTTP_GET_VARS['id'];
$imgname=image_.$id..jpg;
copy($myimage,$imgname);
unlink($myimage);
function thumbnail($i,$nw,$p,$nn) {
$img=imagecreatefromjpeg($i);
$ow=imagesx($img);
$oh=imagesy($img);
$scale=$nw/$ow;
$nh=ceil($oh*$scale);
$newimg=imagecreatetruecolor($nw,$nh);
imagecopyresized($newimg,$img,0,0,0,0,$nw,$nh,$ow,$oh);
imagejpeg($newimg, $nn);
return true;
}
#thumbnail(filetouse,newwidth,newpath,newname);
thumbnail($imgname,100,/imges/,t_.$imgname);
thumbnail($imgname,250,/imges/,$imgname);
here is the site if anyone is interested,
http://www.wardsmotorsports.com
Thanks,
Eddie
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Re: [PHP] images..
On Tuesday 24 June 2003 23:35, Edward Peloke wrote: I asked this question last week and thought I had it fixed but it still doesn't seem to work. I use the code below to allow the user to upload their images, once uploaded the images don't look nearly as good as they did before uploading. Another interesting thing is that if you right click on the images, they don't give you the option of saving the image, only saving as background but maybe that is because they are jpegs. Do I need to use a higher resolution picture? imagecopyresized($newimg,$img,0,0,0,0,$nw,$nh,$ow,$oh); imagecopyresampled() -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Images out side the wwwroot
On 10-Mar-2003 Philip J. Newman wrote:
If i was to use PHP to call all my images from out side the wwwroot, dose
anyone have a method that they use?
show.php
-
?php
$rcsid='$Id: show.php,v 1.1 2002/02/14 21:20:26 dread Exp dread $';
// $Log: show.php,v 2002/02/14 21:20:26 dread $
// Revision 1.1dread
// Initial revision
//
error_reporting(0);
// where is the base directory of the images?
$imgdir='/usr/local/private/image';
// Allow a sub-directory from $imgdir?
$allowpath= 0;
// Allow searching for extention ? *not implemented*
$allowsearch= 0;
$mimetype=array(
'jpeg' = 'image/jpeg',
'jpg' = 'image/jpeg',
'gif' = 'image/gif',
'mpeg' = 'video/mpeg',
'mpg' = 'video/mpeg',
'mov' = 'video/quicktime',
// 'avi' = 'video/avi',
'avi' = 'video/x-msvideo',
'wmv' = 'video/x-ms-wmv',
'asf' = 'video/x-ms-asf',
'png' = 'image/png'
);
if (! isset($id))
die('no id.');
$id= urldecode($id);
$id= str_replace('../', '', $id); // fix the dodgy stuff
$id= trim($id);
if (! ($allowpath) )
$id= basename($id);
$ext= substr(strrchr($id, '.'), 1);
$path= $imgdir .'/' .$id;
if ($handle= fopen($path, 'r')) {
Header('Content-type: ' .$mimetype[$ext]);
Header(Content-Disposition: inline; filename= .basename($id));
fpassthru($handle);
fclose($handle);
}
?
call it as 'show.php?id=secretimg.jpeg' or use
IMG SRC=show.php?id=secretimg.jpeg
Regards,
--
Don Read [EMAIL PROTECTED]
-- It's always darkest before the dawn. So if you are going to
steal the neighbor's newspaper, that's the time to do it.
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[PHP] Images out side the wwwroot
If i was to use PHP to call all my images from out side the wwwroot, dose anyone have a method that they use? -- Philip J. Newman. Head Developer [EMAIL PROTECTED] +64 (9) 576 9491 +64 021-048-3999 -- Friends are like stars You can't allways see them, but they are always there. -- Websites: PhilipNZ.com - Design. http://www.philipnz.com/ [EMAIL PROTECTED] Philip's Domain // Internet Project. http://www.philipsdomain.com/ [EMAIL PROTECTED] Vital Kiwi / NEWMAN.NET.NZ. http://www.newman.net.nz/ [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images out side the wwwroot
Philip J. Newman [EMAIL PROTECTED] wrote: If i was to use PHP to call all my images from out side the wwwroot, dose anyone have a method that they use? By using an absolute path? - E __ Do You Yahoo!? Yahoo! BB is Broadband by Yahoo! http://bb.yahoo.co.jp/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Images
I am thinking in making some statistics graphics in php ... is there any library that i can use? thanks L.L. -- Lucas Lain [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images
On Saturday 15 February 2003 02:35, Lucas Lain wrote: I am thinking in making some statistics graphics in php ... is there any library that i can use? thanks jpgraph -- Jason Wong - Gremlins Associates - www.gremlins.biz Open Source Software Systems Integrators * Web Design Hosting * Internet Intranet Applications Development * -- Search the list archives before you post http://marc.theaimsgroup.com/?l=php-general -- /* Most people deserve each other. -- Shirley */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Images
jpgraph professional license??? other FREE idea??? Jason Wong wrote: On Saturday 15 February 2003 02:35, Lucas Lain wrote: I am thinking in making some statistics graphics in php ... is there any library that i can use? thanks jpgraph -- Lucas Lain [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
