[PHP] problem with system()
Hi, I'm trying to unzip a file and save the unzipped data in a variable in PHP using : $result = system ( gzip -d -c myfile.gz ); /* 'gzip -d -c' unzips the file to 'stdout' */ the above command outputs the result directly to browser instead of putting it in $result. I tried exec() too but it didn't help because exec() returns only the last line of the output data. let me add that myfile.gz is about 1.5mb. help me please ! Arash -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] preg_replace_callback()
Hi, What is a callback in preg_replace_callback(...) ? how can I use it ? can anybody give me an example ? Thanks, Arash -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] Re: when to delete a temporary file ?
Lasse [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Arash Dejkam [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, I've created a site where users can upload photos and specify which other users are allowed to view them using PHP session management. now I have alittle problem in the post-upload page, script creates a temporary copy of the uploaded image with a name the same as user's session ID, and puts a img src=temp file... in the page for the user to view the uploaded photo and confirm it. now I don't know when to delete that temporary file ! because I don't know how long does the user's browser take to download the image. currently I delete it in the script coming up just after user clicks the confirm button, but what if the user close his/her browser before clicking the confirm button ? the file remains there for ever !! what's your suggestion ? Don't your sessions time out BTW? That should make it possible to check for any temp files whose session isn't alive anymore and delete them. Since the corresponding session is dead anyway the image can be safely deleted... Or am I missing something? -- Lasse this was the first approach I thought about, but I don't know how to check session IDs other that current one I use session_is_registered() to check for the current session but how can I check for other sessions ? tell me please :) Thanks Arash Dejkam -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] when to delete a temporary file ?
Hi, I've created a site where users can upload photos and specify which other users are allowed to view them using PHP session management. now I have alittle problem in the post-upload page, script creates a temporary copy of the uploaded image with a name the same as user's session ID, and puts a img src=temp file... in the page for the user to view the uploaded photo and confirm it. now I don't know when to delete that temporary file ! because I don't know how long does the user's browser take to download the image. currently I delete it in the script coming up just after user clicks the confirm button, but what if the user close his/her browser before clicking the confirm button ? the file remains there for ever !! what's your suggestion ? Thanks Arash Dejkam -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] protected Images without using htaccess
Hi, and the shorthand for this : ?php $img=ImageCreateFromJPEG($filename); ImageJPEG($img); ? Thanks Arash Dejkam Fredrik Arild Takle [EMAIL PROTECTED] wrote in message 9gvl19$er6$[EMAIL PROTECTED]">news:9gvl19$er6$[EMAIL PROTECTED]... 1. Authenticate user 2. Put the pictures in a secret folder or outside http_root 3. Do this: ?php header(Content-Type: application/download\n); header(Content-Disposition: filename=\$file\); $fn = fopen($file , r); fpassthru($fn); ? I hope this helps! Fredrik A. Takle [EMAIL PROTECTED] www.iportal1.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] PHP authenticating and session management
Hi, I want to use PHP session manager but I have some problems, I want the session start in a login page so I do this for example: after authenticating... session_start(); session_register(username); then I want the user to be able to see his own pages, what do I have to do in those pages? simply check $username and bring up the user's page ? but this makes it possible for any hacker to send a cookie with username and see that page. I know that PHP stores a unique random number for each session but how can I check that it matches with the number in the cookie. help me please I'm really confused ! Thanks Arash Dejkam -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Re: PHP authenticating and session management
Hi, Thank you very much, you gave me the lines I was looking for in the 7-8 tutorials I read in last 48 hour to find and I didn't :) Dejkam http://www.dejkam.f2s.com Stephen Yau [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, You can use $HTTP_SESSION_VARS[username] to make sure that this variable is from the user session, not from the cookie. When you do a session_register(username);, the $username is store in the server side, not on the client. The client side only have a Session ID store in the cookie. Each time when a client side request a php page, PHP will see if a specific Session ID has been sent with the request. If this is the case, the prior saved environment is recreated. -Stephen Yau Arash Dejkam writes: Hi, I want to use PHP session manager but I have some problems, I want the session start in a login page so I do this for example: after authenticating... session_start(); session_register(username); ... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] protected Images without using htaccess
Hi, I'm going to make a page in which users (being authenticated by PHP session management) upload pictures and specify which other users can see those pictures, and I want all the process be automated, and I don't want to use Apache protection on directories, now I have a problem: if I store images in a directory which is in root directory of HTTP server, then any user can access any image by sending a direct query from his browser like : www.mysite.com/members/images/img023.jpg even if he is not allowed. and also I can not save image out of HTTP root directory because then http can not serve them. I found a very foolish solution for this :) I can store the images out of HTTP root dir and then use a PHP script which first checks the session ID and then sends the images with ImageCreateFromJPEG() and ImageJPEG() functions. Can anybody give me a better way to solve this problem ? Thanks Arash Dejkam -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
