Re: [PHP] caching problem
On Tuesday, 28 June 2011 at 06:57, Fatih P. wrote: On Tue, Jun 28, 2011 at 7:40 AM, Nilesh Govindarajan cont...@nileshgr.com (mailto:cont...@nileshgr.com)wrote: On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica basically using default configuration, have not changed anything except the path for extensions in php.ini. and there is nothing installed/configured to cache anything. Since restarting Apache does not help, the problem is obviously outside the web server. There are two possibilities I can think of... * Browser caching * Proxy caching See if clearing your browser cache helps. If not then you probably have a proxy between you and the server that's caching the content. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] caching problem
If the issue is a caching proxy or browser caching I suggest you look into controlling the page caching header. You can expire the header. // calc an offset of 24 hours $offset = 3600 * 24; // calc the string in GMT not localtime and add the offset $expire = Expires: . gmdate(D, d M Y H:i:s, time() + $offset) . GMT; //output the HTTP header Header($expire); Just a thought. Richard L. Buskirk -Original Message- From: Stuart Dallas [mailto:stu...@3ft9.com] Sent: Tuesday, June 28, 2011 7:53 AM To: Fatih P. Cc: php-general@lists.php.net Subject: Re: [PHP] caching problem On Tuesday, 28 June 2011 at 06:57, Fatih P. wrote: On Tue, Jun 28, 2011 at 7:40 AM, Nilesh Govindarajan cont...@nileshgr.com (mailto:cont...@nileshgr.com)wrote: On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica basically using default configuration, have not changed anything except the path for extensions in php.ini. and there is nothing installed/configured to cache anything. Since restarting Apache does not help, the problem is obviously outside the web server. There are two possibilities I can think of... * Browser caching * Proxy caching See if clearing your browser cache helps. If not then you probably have a proxy between you and the server that's caching the content. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ -- 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] caching problem
On Tue, Jun 28, 2011 at 1:51 PM, Fatih P. fatihpirist...@gmail.com wrote: On Tue, Jun 28, 2011 at 1:52 PM, Stuart Dallas stu...@3ft9.com wrote: On Tuesday, 28 June 2011 at 06:57, Fatih P. wrote: On Tue, Jun 28, 2011 at 7:40 AM, Nilesh Govindarajan cont...@nileshgr.com (mailto:cont...@nileshgr.com)wrote: On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica basically using default configuration, have not changed anything except the path for extensions in php.ini. and there is nothing installed/configured to cache anything. Since restarting Apache does not help, the problem is obviously outside the web server. There are two possibilities I can think of... * Browser caching * Proxy caching See if clearing your browser cache helps. If not then you probably have a proxy between you and the server that's caching the content. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ This is not proxy or browser caching. browser does not receive php code. it gets output of php code. Well thanks, cos I only started doing this whole webby programmy developy technobabble thing yesterday and I'm still learning the basics!* How do you know that modifications in methods are skipped and not executed? By looking at the output shown in your browser? The output that could be cached by proxies and/or your browser? Or are you running them on the command line, in which case some sort of opcode cache is probably the culprit, or you're not running the code you think you are. -Stuart *sarcasm! -- Stuart Dallas 3ft9 Ltd http://3ft9.com/
RE: [PHP] caching problem
Faith, I actually did read from the beginning of the message. That does not make sense. PHP files are cached intentionally, the system does not Cache PHP on its own. Sounds to me like you have an issue re-declaring an object or calling the right script/path/class/method something. I have never heard of PHP being cached unless it was intentionally cached it. Thank god for security reason! HTML output?? Sure all the time helps the browser load the content faster. I have a real issue with who ever told you that PHP is being cached, because if that was the case there is SERIOUS security hole in your PHP. I am doubting that. I have cached PHP, it can be done. Are you using APC(Alternative PHP Cache)??? I would not suggest it with complex scripting using classes and methods they are the whole reason NOT to cache. That’s just my opinion. Richard L. Buskirk -Original Message- From: Stuart Dallas [mailto:stu...@3ft9.com] Sent: Tuesday, June 28, 2011 9:18 AM To: Fatih P. Cc: PHP General Subject: Re: [PHP] caching problem On Tue, Jun 28, 2011 at 1:51 PM, Fatih P. fatihpirist...@gmail.com wrote: On Tue, Jun 28, 2011 at 1:52 PM, Stuart Dallas stu...@3ft9.com wrote: On Tuesday, 28 June 2011 at 06:57, Fatih P. wrote: On Tue, Jun 28, 2011 at 7:40 AM, Nilesh Govindarajan cont...@nileshgr.com (mailto:cont...@nileshgr.com)wrote: On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica basically using default configuration, have not changed anything except the path for extensions in php.ini. and there is nothing installed/configured to cache anything. Since restarting Apache does not help, the problem is obviously outside the web server. There are two possibilities I can think of... * Browser caching * Proxy caching See if clearing your browser cache helps. If not then you probably have a proxy between you and the server that's caching the content. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ This is not proxy or browser caching. browser does not receive php code. it gets output of php code. Well thanks, cos I only started doing this whole webby programmy developy technobabble thing yesterday and I'm still learning the basics!* How do you know that modifications in methods are skipped and not executed? By looking at the output shown in your browser? The output that could be cached by proxies and/or your browser? Or are you running them on the command line, in which case some sort of opcode cache is probably the culprit, or you're not running the code you think you are. -Stuart *sarcasm! -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 5:12 PM, ad...@buskirkgraphics.com wrote: Faith, I actually did read from the beginning of the message. That does not make sense. PHP files are cached intentionally, the system does not Cache PHP on its own. Sounds to me like you have an issue re-declaring an object or calling the right script/path/class/method something. I have never heard of PHP being cached unless it was intentionally cached it. Thank god for security reason! HTML output?? Sure all the time helps the browser load the content faster. I have a real issue with who ever told you that PHP is being cached, because if that was the case there is SERIOUS security hole in your PHP. I am doubting that. I have cached PHP, it can be done. Are you using APC(Alternative PHP Cache)??? I would not suggest it with complex scripting using classes and methods they are the whole reason NOT to cache. That’s just my opinion. Richard L. Buskirk Well, seems you didn't read it carefully even to write my name correctly. if this is an issue with PHP then it is an issue with PHP. AsI said I am using pre-compiled binaries with default settings. also mentioned no caching is enabled to cache anything. And NO i am not using APC either or something else!!!
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 4:23 PM, Fatih P. fatihpirist...@gmail.com wrote: On Tue, Jun 28, 2011 at 5:12 PM, ad...@buskirkgraphics.com wrote: Faith, I actually did read from the beginning of the message. That does not make sense. PHP files are cached intentionally, the system does not Cache PHP on its own. Sounds to me like you have an issue re-declaring an object or calling the right script/path/class/method something. I have never heard of PHP being cached unless it was intentionally cached it. Thank god for security reason! HTML output?? Sure all the time helps the browser load the content faster. I have a real issue with who ever told you that PHP is being cached, because if that was the case there is SERIOUS security hole in your PHP. I am doubting that. I have cached PHP, it can be done. Are you using APC(Alternative PHP Cache)??? I would not suggest it with complex scripting using classes and methods they are the whole reason NOT to cache. That’s just my opinion. Richard L. Buskirk Well, seems you didn't read it carefully even to write my name correctly. if this is an issue with PHP then it is an issue with PHP. AsI said I am using pre-compiled binaries with default settings. also mentioned no caching is enabled to cache anything. And NO i am not using APC either or something else!!! Fatih, please explain what you mean by the code files are being cached. and modifications in methods are skipped and not executed. How are you getting the modified files onto the server, and how are you running the scripts? Are you working directly on the server, or are you uploading the files to the server via FTP, SCP or some other mechanism? -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 5:30 PM, Stuart Dallas stu...@3ft9.com wrote: On Tue, Jun 28, 2011 at 4:23 PM, Fatih P. fatihpirist...@gmail.comwrote: On Tue, Jun 28, 2011 at 5:12 PM, ad...@buskirkgraphics.com wrote: Faith, I actually did read from the beginning of the message. That does not make sense. PHP files are cached intentionally, the system does not Cache PHP on its own. Sounds to me like you have an issue re-declaring an object or calling the right script/path/class/method something. I have never heard of PHP being cached unless it was intentionally cached it. Thank god for security reason! HTML output?? Sure all the time helps the browser load the content faster. I have a real issue with who ever told you that PHP is being cached, because if that was the case there is SERIOUS security hole in your PHP. I am doubting that. I have cached PHP, it can be done. Are you using APC(Alternative PHP Cache)??? I would not suggest it with complex scripting using classes and methods they are the whole reason NOT to cache. That’s just my opinion. Richard L. Buskirk Well, seems you didn't read it carefully even to write my name correctly. if this is an issue with PHP then it is an issue with PHP. AsI said I am using pre-compiled binaries with default settings. also mentioned no caching is enabled to cache anything. And NO i am not using APC either or something else!!! Fatih, please explain what you mean by the code files are being cached. and modifications in methods are skipped and not executed. How are you getting the modified files onto the server, and how are you running the scripts? Are you working directly on the server, or are you uploading the files to the server via FTP, SCP or some other mechanism? -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ OK, this is a development machine, everything is running on it. nothing is being uploaded through ftp, scp or something else. all kind of content caching is disabled. and what I mean by the code files are being cached is: after the modifications, i do get the result which was produced before modification. which shows that the file is not being interpreted by php. how i get to this point that I see errors after restarting the machine which were not there during coding or when i dump an object it doesn't show up anything other than previous content. to recover this situation, either I have to restart httpd which sometimes does work or when it gets more problematic, i have to crush httpd / php on start. and only having this problem on windows machines. sounds funny to most of you but it is happening
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 5:12 PM, Fatih P. fatihpirist...@gmail.com wrote: On Tue, Jun 28, 2011 at 5:30 PM, Stuart Dallas stu...@3ft9.com wrote: Fatih, please explain what you mean by the code files are being cached. and modifications in methods are skipped and not executed. How are you getting the modified files onto the server, and how are you running the scripts? Are you working directly on the server, or are you uploading the files to the server via FTP, SCP or some other mechanism? OK, this is a development machine, everything is running on it. nothing is being uploaded through ftp, scp or something else. all kind of content caching is disabled. and what I mean by the code files are being cached is: after the modifications, i do get the result which was produced before modification. which shows that the file is not being interpreted by php. how i get to this point that I see errors after restarting the machine which were not there during coding or when i dump an object it doesn't show up anything other than previous content. to recover this situation, either I have to restart httpd which sometimes does work or when it gets more problematic, i have to crush httpd / php on start. and only having this problem on windows machines. sounds funny to most of you but it is happening I'm sure it is happening, I don't doubt that, but there's probably a very simple explanation. What browser are you using? Certain older browsers such as IE6 have their own ideas about whether pages should be cached or not. You can usually bypass the browser cache by holding control and/or shift while clicking on the refresh button. Try that next time this happens. Other possibilities include filesystem issues, such that the OS is not seeing that the file has been changed - there are levels of caching on modern operating systems that most people, quite correctly, are not aware of. The likelihood of this being the cause is miniscule. If you're absolutely certain that you are not using any opcode caching (you mentioned that you are using pre-compiled binaries, and it's possible they include APC or similar by default), then I have no idea what's going on beyond what I and others have already suggested. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/
RE: [PHP] caching problem
Fatih, I am sorry spell check auto corrected your name, I was not changing your name on purpose. It was not my intension to piss you off. I understand your frustration, trust me. I am running 5.3.6 on Windows Server 2008 R2 IIS, I am running massive class based methods in my own framework. I am trying to help you narrow down the issue. I never blame PHP first because in my trouble shooting steps, I never get to PHP before I find the issue. Segmentation Faults: that prevent the php script from completing locking up resources and causing a nightmare chain of events. It dumps the process at the fail point can look like it is a PHP thing but it is not. This can explain sometimes it works and sometimes it does not. This can be caused by a host of reasons: Buffer Overflow, Attempting to access memory the program does not own. (This also points to Storage Violations) Using uninitialized pointers, Dereferencing Null pointers Again suggestions please do not take offense. Richard L. Buskirk -Original Message- From: Fatih P. [mailto:fatihpirist...@gmail.com] Sent: Tuesday, June 28, 2011 12:13 PM To: Stuart Dallas Cc: ad...@buskirkgraphics.com; PHP General Subject: Re: [PHP] caching problem On Tue, Jun 28, 2011 at 5:30 PM, Stuart Dallas stu...@3ft9.com wrote: On Tue, Jun 28, 2011 at 4:23 PM, Fatih P. fatihpirist...@gmail.comwrote: On Tue, Jun 28, 2011 at 5:12 PM, ad...@buskirkgraphics.com wrote: Faith, I actually did read from the beginning of the message. That does not make sense. PHP files are cached intentionally, the system does not Cache PHP on its own. Sounds to me like you have an issue re-declaring an object or calling the right script/path/class/method something. I have never heard of PHP being cached unless it was intentionally cached it. Thank god for security reason! HTML output?? Sure all the time helps the browser load the content faster. I have a real issue with who ever told you that PHP is being cached, because if that was the case there is SERIOUS security hole in your PHP. I am doubting that. I have cached PHP, it can be done. Are you using APC(Alternative PHP Cache)??? I would not suggest it with complex scripting using classes and methods they are the whole reason NOT to cache. That’s just my opinion. Richard L. Buskirk Well, seems you didn't read it carefully even to write my name correctly. if this is an issue with PHP then it is an issue with PHP. AsI said I am using pre-compiled binaries with default settings. also mentioned no caching is enabled to cache anything. And NO i am not using APC either or something else!!! Fatih, please explain what you mean by the code files are being cached. and modifications in methods are skipped and not executed. How are you getting the modified files onto the server, and how are you running the scripts? Are you working directly on the server, or are you uploading the files to the server via FTP, SCP or some other mechanism? -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/ OK, this is a development machine, everything is running on it. nothing is being uploaded through ftp, scp or something else. all kind of content caching is disabled. and what I mean by the code files are being cached is: after the modifications, i do get the result which was produced before modification. which shows that the file is not being interpreted by php. how i get to this point that I see errors after restarting the machine which were not there during coding or when i dump an object it doesn't show up anything other than previous content. to recover this situation, either I have to restart httpd which sometimes does work or when it gets more problematic, i have to crush httpd / php on start. and only having this problem on windows machines. sounds funny to most of you but it is happening -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching problem
On Tue, 2011-06-28 at 17:34 +0100, Stuart Dallas wrote: On Tue, Jun 28, 2011 at 5:12 PM, Fatih P. fatihpirist...@gmail.com wrote: On Tue, Jun 28, 2011 at 5:30 PM, Stuart Dallas stu...@3ft9.com wrote: Fatih, please explain what you mean by the code files are being cached. and modifications in methods are skipped and not executed. How are you getting the modified files onto the server, and how are you running the scripts? Are you working directly on the server, or are you uploading the files to the server via FTP, SCP or some other mechanism? OK, this is a development machine, everything is running on it. nothing is being uploaded through ftp, scp or something else. all kind of content caching is disabled. and what I mean by the code files are being cached is: after the modifications, i do get the result which was produced before modification. which shows that the file is not being interpreted by php. how i get to this point that I see errors after restarting the machine which were not there during coding or when i dump an object it doesn't show up anything other than previous content. to recover this situation, either I have to restart httpd which sometimes does work or when it gets more problematic, i have to crush httpd / php on start. and only having this problem on windows machines. sounds funny to most of you but it is happening I'm sure it is happening, I don't doubt that, but there's probably a very simple explanation. What browser are you using? Certain older browsers such as IE6 have their own ideas about whether pages should be cached or not. You can usually bypass the browser cache by holding control and/or shift while clicking on the refresh button. Try that next time this happens. Other possibilities include filesystem issues, such that the OS is not seeing that the file has been changed - there are levels of caching on modern operating systems that most people, quite correctly, are not aware of. The likelihood of this being the cause is miniscule. If you're absolutely certain that you are not using any opcode caching (you mentioned that you are using pre-compiled binaries, and it's possible they include APC or similar by default), then I have no idea what's going on beyond what I and others have already suggested. -Stuart maybe, you're updating the wrong files? I've done that a few times, where the files i THOUGHT it was using, ended up being in the wrong folder (or apache was pointing to a different folder... kinda one in the same). just an alternate spin on it... Steve -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 6:39 PM, ad...@buskirkgraphics.com wrote: Fatih, I am sorry spell check auto corrected your name, I was not changing your name on purpose. It was not my intension to piss you off. I understand your frustration, trust me. I am running 5.3.6 on Windows Server 2008 R2 IIS, I am running massive class based methods in my own framework. I am trying to help you narrow down the issue. I never blame PHP first because in my trouble shooting steps, I never get to PHP before I find the issue. Segmentation Faults: that prevent the php script from completing locking up resources and causing a nightmare chain of events. It dumps the process at the fail point can look like it is a PHP thing but it is not. This can explain sometimes it works and sometimes it does not. This can be caused by a host of reasons: Buffer Overflow, Attempting to access memory the program does not own. (This also points to Storage Violations) Using uninitialized pointers, Dereferencing Null pointers Again suggestions please do not take offense. Richard L. Buskirk already here to ask for suggestions not to take offense. Anyway, I will re-check these points you have mentioned. thanks.
Re: [PHP] caching problem
OP: Can we see the methods in question? Have you tried running the code on a different server/host? Have you added any scaffolding to your methods in order to test your caching theory? This would be the first thing I would try (i.e. create random number (or whatever), concat with variable vals generated via method, other.) Sent from my iPhone -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 5:53 PM, Fatih P. fatihpirist...@gmail.com wrote:
On Tue, Jun 28, 2011 at 6:34 PM, Stuart Dallas stu...@3ft9.com wrote:
On Tue, Jun 28, 2011 at 5:12 PM, Fatih P. fatihpirist...@gmail.comwrote:
On Tue, Jun 28, 2011 at 5:30 PM, Stuart Dallas stu...@3ft9.com wrote:
Fatih, please explain what you mean by the code files are being
cached. and modifications in methods are skipped
and not executed. How are you getting the modified files onto the
server, and how are you running the scripts? Are you working directly on
the
server, or are you uploading the files to the server via FTP, SCP or some
other mechanism?
OK, this is a development machine, everything is running on it. nothing
is being uploaded through ftp, scp or something else.
all kind of content caching is disabled.
and what I mean by the code files are being cached is: after the
modifications, i do get the result which was produced before modification.
which shows
that the file is not being interpreted by php. how i get to this point
that I see errors after restarting the machine which were not there during
coding or when
i dump an object it doesn't show up anything other than previous content.
to recover this situation, either I have to restart httpd which
sometimes does work or when it gets more problematic,
i have to crush httpd / php on start. and only having this problem on
windows machines.
sounds funny to most of you but it is happening
I'm sure it is happening, I don't doubt that, but there's probably a very
simple explanation.
What browser are you using? Certain older browsers such as IE6 have their
own ideas about whether pages should be cached or not. You can usually
bypass the browser cache by holding control and/or shift while clicking on
the refresh button. Try that next time this happens.
Other possibilities include filesystem issues, such that the OS is not
seeing that the file has been changed - there are levels of caching on
modern operating systems that most people, quite correctly, are not aware
of. The likelihood of this being the cause is miniscule.
If you're absolutely certain that you are not using any opcode caching
(you mentioned that you are using pre-compiled binaries, and it's possible
they include APC or similar by default), then I have no idea what's going on
beyond what I and others have already suggested.
using FF3,5 and IE7 as browser.
Those browsers should be fine, but forcing a reload (the control/shift +
refresh) is always worth trying.
Maybe I should compile php myself disabling things i dont need and see it
will make any difference.
You can see what's in your PHP build by creating a script that just contains
the following..
?php phpinfo(); ?
Run that and check the output. If you got the binary from php.net then
chances are that you don't have any opcode caching modules in there.
It's also worth doing a variation on Micky's suggestion - when I want to
make sure a script has actually been executed rather than cached data being
served I put a call to echo date('r'); in an appropriate place. That way the
script output will display the current date and time which should change
with each request.
-Stuart
--
Stuart Dallas
3ft9 Ltd
http://3ft9.com/
[PHP] caching problem
Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih
Re: [PHP] caching problem
On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching problem
On Tue, Jun 28, 2011 at 7:40 AM, Nilesh Govindarajan cont...@nileshgr.comwrote: On 06/28/2011 10:56 AM, Fatih P. wrote: Hi guys, the code files are being cached. and modifications in methods are skipped and not executed. is there any parameter that i can pass it from ini file? this has been so annoying for me. restarting apache, windows, etc does not even help. im running apache 2.2.19, php ts 5.3.6 on windows 2003 r2 any ideas how to avoid this situation? thanks Fatih It seems you have a wrongly configured opcode cache runnning about which you're not aware of. -- Regards, Nilesh Govindarajan @nileshgr on twitter/identica basically using default configuration, have not changed anything except the path for extensions in php.ini. and there is nothing installed/configured to cache anything.
Re: [PHP] Internal PHP caching methodology
On Sat, Jul 18, 2009 at 7:14 AM, Daniel Kolbokolb0...@umn.edu wrote: Daniel Kolbo wrote: Eric Butera wrote: On Thu, Jul 16, 2009 at 5:50 PM, Daniel Kolbokolb0...@umn.edu wrote: Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Have you actually profiled your code to see where the pain points are vs saying 'module?' Are you also running an opcode cache? From there you can use data, block, or full page caching. Finally you can figure out if you want to store it in flat files or memory. I'd start by knowing what is actually the slow part using Xdebug and nail a few down. There is no end all solution. Some pages really don't have a lot going on and are hardly updated so full page is fine. Others might have something that is hard to generate on a sidebar, so block caching would be more suitable for that. As previously mentioned, Zend_Cache is up to the task. There is also a PEAR package called Cache_Lite which would work to if you're interested in file based caching. So dreams do come true... Thank you for the wonderful insight. I've been reading about the memcached and Xdebug and Zend_Cache. I've got lots to learn, but it is exactly the type of material i was trying to find. I am not currently running an opcode cache. I may be doing premature optimization, but i want to design the entire system intelligently from the get go rather than having to rebuild later. you know 'work smarter not harder' Is it possible to run xdebug on a virtual host server on which i do not have shell access? I can modify php.ini via cgi, but I don't know if i'd be able to view the results of xdebug on the machine. Your opinion would be appreciated. Thanks so much, i feel like i've just been shown a whole new world. dK ` I still have to (fully) rtfm. But i was wondering if the following scenario(s) is(are) possible. -Does memcached store the same data under different keys in the same spot? From my reading so far, i do not think so. My understanding is that currently memcached goes like as follows: key-key_hash-server-data_value but this approach could conceivably store the same data_value under different keys (thus consuming unneeded memory) What i'd like it to do is the following: key-key_hash-server-data_hash-server-data_value That is, each key has the data_hash as its value. Then one uses this data_hash as the new key which has the data_value as its value. This way the only data that is replicated would be the relatively small data_hash, but the (larger) data itself would not be replicated. This would allow for the user to use different keys to access the same data. This would be needed when seemingly different keys happen to share the same data, but would be too costly to recognize, predict, and accommodate such associations This doubles the number of calls to the server, but could conceivable save a great deal of memory for more cached objects. What would be even slicker is if the programmer could use either approach within the same script. For example, if the programmer new for (almost) certain that a certain key would never have the same data signature as any other key, she could then use the original method and save on the overhead of storing key_hash to data_hashes pairs. Also, I really like the idea behind zend_cache that I can use memcache/d as the backend. That's pretty modular! I have three direct questions: 1) Is the above approach wise or have i violated some basic caching principle? 2) Is the php memcache/memcached class extendable (so that I can implement 1 above)? 3) If 2) is yes, can I use this extendable class as the backend for zend_cache? Thanks, dK ` The fact you said you haven't used Xdebug or have an opcode cache means you're starting from the wrong end. I'm pretty sure using Zend_Cache with a flatfile backend would be more than adequate for your needs. As for your questions, if you think that is the way to use it that would
Re: [PHP] Internal PHP caching methodology
Daniel Kolbo wrote: Eric Butera wrote: On Thu, Jul 16, 2009 at 5:50 PM, Daniel Kolbokolb0...@umn.edu wrote: Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Have you actually profiled your code to see where the pain points are vs saying 'module?' Are you also running an opcode cache? From there you can use data, block, or full page caching. Finally you can figure out if you want to store it in flat files or memory. I'd start by knowing what is actually the slow part using Xdebug and nail a few down. There is no end all solution. Some pages really don't have a lot going on and are hardly updated so full page is fine. Others might have something that is hard to generate on a sidebar, so block caching would be more suitable for that. As previously mentioned, Zend_Cache is up to the task. There is also a PEAR package called Cache_Lite which would work to if you're interested in file based caching. So dreams do come true... Thank you for the wonderful insight. I've been reading about the memcached and Xdebug and Zend_Cache. I've got lots to learn, but it is exactly the type of material i was trying to find. I am not currently running an opcode cache. I may be doing premature optimization, but i want to design the entire system intelligently from the get go rather than having to rebuild later. you know 'work smarter not harder' Is it possible to run xdebug on a virtual host server on which i do not have shell access? I can modify php.ini via cgi, but I don't know if i'd be able to view the results of xdebug on the machine. Your opinion would be appreciated. Thanks so much, i feel like i've just been shown a whole new world. dK ` I still have to (fully) rtfm. But i was wondering if the following scenario(s) is(are) possible. -Does memcached store the same data under different keys in the same spot? From my reading so far, i do not think so. My understanding is that currently memcached goes like as follows: key-key_hash-server-data_value but this approach could conceivably store the same data_value under different keys (thus consuming unneeded memory) What i'd like it to do is the following: key-key_hash-server-data_hash-server-data_value That is, each key has the data_hash as its value. Then one uses this data_hash as the new key which has the data_value as its value. This way the only data that is replicated would be the relatively small data_hash, but the (larger) data itself would not be replicated. This would allow for the user to use different keys to access the same data. This would be needed when seemingly different keys happen to share the same data, but would be too costly to recognize, predict, and accommodate such associations This doubles the number of calls to the server, but could conceivable save a great deal of memory for more cached objects. What would be even slicker is if the programmer could use either approach within the same script. For example, if the programmer new for (almost) certain that a certain key would never have the same data signature as any other key, she could then use the original method and save on the overhead of storing key_hash to data_hashes pairs. Also, I really like the idea behind zend_cache that I can use memcache/d as the backend. That's pretty modular! I have three direct questions: 1) Is the above approach wise or have i violated some basic caching principle? 2) Is the php memcache/memcached class extendable (so that I can implement 1 above)? 3) If 2) is yes, can I use this extendable class as the backend for zend_cache? Thanks, dK ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Internal PHP caching methodology
Eric Butera wrote: On Thu, Jul 16, 2009 at 5:50 PM, Daniel Kolbokolb0...@umn.edu wrote: Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Have you actually profiled your code to see where the pain points are vs saying 'module?' Are you also running an opcode cache? From there you can use data, block, or full page caching. Finally you can figure out if you want to store it in flat files or memory. I'd start by knowing what is actually the slow part using Xdebug and nail a few down. There is no end all solution. Some pages really don't have a lot going on and are hardly updated so full page is fine. Others might have something that is hard to generate on a sidebar, so block caching would be more suitable for that. As previously mentioned, Zend_Cache is up to the task. There is also a PEAR package called Cache_Lite which would work to if you're interested in file based caching. So dreams do come true... Thank you for the wonderful insight. I've been reading about the memcached and Xdebug and Zend_Cache. I've got lots to learn, but it is exactly the type of material i was trying to find. I am not currently running an opcode cache. I may be doing premature optimization, but i want to design the entire system intelligently from the get go rather than having to rebuild later. you know 'work smarter not harder' Is it possible to run xdebug on a virtual host server on which i do not have shell access? I can modify php.ini via cgi, but I don't know if i'd be able to view the results of xdebug on the machine. Your opinion would be appreciated. Thanks so much, i feel like i've just been shown a whole new world. dK ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Internal PHP caching methodology
Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Internal PHP caching methodology
On Jul 16, 2009, at 5:50 PM, Daniel Kolbo kolb0...@umn.edu wrote: Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Memcache Apc Zend_cache Google php caching Bastien Sent from my iPod -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Internal PHP caching methodology
On Thu, Jul 16, 2009 at 5:50 PM, Daniel Kolbokolb0...@umn.edu wrote: Hello, Call me a dreamer...but I got to ask. Is there any software for helping speed up PHP by utilizing internal PHP caching? I am not talking about the external php cache/header control. Smarty caching doesn't give me the control I need either. I would like to cache to a finer level than page by page, but rather on a module by module basis. Each of my pages contains a subset of modules. The content of these modules changes based upon certain criteria (link, time, session data, but is sometimes static across the site). I would like to be able to cache individual modules (preferably based upon frequency and time to generate). I am trying to develop a way to do this, but I have to think a brighter mind has come before me and hopefully arrived at a solution. As always any help/thoughts are much appreciated, except for that one guy's comments (you all know who I am talking) ~ jk ;) Thanks, ` -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Have you actually profiled your code to see where the pain points are vs saying 'module?' Are you also running an opcode cache? From there you can use data, block, or full page caching. Finally you can figure out if you want to store it in flat files or memory. I'd start by knowing what is actually the slow part using Xdebug and nail a few down. There is no end all solution. Some pages really don't have a lot going on and are hardly updated so full page is fine. Others might have something that is hard to generate on a sidebar, so block caching would be more suitable for that. As previously mentioned, Zend_Cache is up to the task. There is also a PEAR package called Cache_Lite which would work to if you're interested in file based caching. -- http://www.ericbutera.us/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching
Hey! About Header set Expires Thu, 15 Apr 2010 20:00:00 GMT The problem is the files might change, lets say - every week. How can I use Header set Expires Thu, 15 Apr 2010 20:00:00 GMT to something like Header set Expires today plus week (or X seconds / y minutes / etc...) In that case you will want to use Cache-Control instead: Header set Cache-Control private,public,max-age=604800 The max-age is the number of seconds (1 week in this case) that the page is cached for. The private and public determine which kinds of cache should cache it. IIRC (which isn't likely). -- Richard Heyes HTML5 Canvas graphing for Firefox, Chrome, Opera and Safari: http://www.rgraph.net (Updated April 11th) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching
Hi, I started caching some of the static files on my application, I was wondering - Lets say I have an article on my website and I *want* to cache it. How will I cache it AND will be able to make my visitors re-cache it if it has been changed? Work from the last modified date/time on the file. When you update the file it will change. Though if your files really are static, then there's little point - the OS will do a far better job of caching them than you will. Also, you may also want to have a goosey at the Cache-Control: HTTP header over Expires:. It can give you more control. How do I use *Header set Expires* (on htaccess) and specifying in a week? A quick Google found this: Header set Expires Thu, 15 Apr 2010 20:00:00 GMT -- Richard Heyes HTML5 Canvas graphing for Firefox, Chrome, Opera and Safari: http://www.rgraph.net (Updated March 28th) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching
Hey! About Header set Expires Thu, 15 Apr 2010 20:00:00 GMT The problem is the files might change, lets say - every week. How can I use Header set Expires Thu, 15 Apr 2010 20:00:00 GMT to something like Header set Expires today plus week (or X seconds / y minutes / etc...) On Fri, Apr 10, 2009 at 12:15 PM, Richard Heyes rich...@php.net wrote: Hi, I started caching some of the static files on my application, I was wondering - Lets say I have an article on my website and I *want* to cache it. How will I cache it AND will be able to make my visitors re-cache it if it has been changed? Work from the last modified date/time on the file. When you update the file it will change. Though if your files really are static, then there's little point - the OS will do a far better job of caching them than you will. Also, you may also want to have a goosey at the Cache-Control: HTTP header over Expires:. It can give you more control. How do I use *Header set Expires* (on htaccess) and specifying in a week? A quick Google found this: Header set Expires Thu, 15 Apr 2010 20:00:00 GMT -- Richard Heyes HTML5 Canvas graphing for Firefox, Chrome, Opera and Safari: http://www.rgraph.net (Updated March 28th)
[PHP] Caching
I started caching some of the static files on my application, I was wondering - Lets say I have an article on my website and I *want* to cache it. How will I cache it AND will be able to make my visitors re-cache it if it has been changed? I read how to do that on static pages, but couldn't find any reference that does not use mod_expires (since I don't have it)... And, if I am already sending a message, How do I use *Header set Expires* (on htaccess) and specifying in a week? Couldn't find any answer to this question as well..
[PHP] Caching and Optimization
Hello All, Today my question is about the all important topic Web Optimization What kind of caching mechanisms can I use for Mysql Queries? I was wondering if you have some methods would you share some code? What kind of caching and optimization mechanisms can I use for frequent Web Service calls? Any kind of code explaining the process would be highly appreciated... Thanks
Re: [PHP] Caching and Optimization
On Thu, Jun 5, 2008 at 10:16 AM, VamVan [EMAIL PROTECTED] wrote:
Hello All,
Today my question is about the all important topic Web Optimization
What kind of caching mechanisms can I use for Mysql Queries?
mysql has its own caching support, worth looking into. you can also cache
query results on the webserver. there you have a variety of mediums to save
the queries in, files (session perhaps), apc, memcache, etc..
What kind of caching and optimization mechanisms can I use for frequent Web
Service calls?
typically, reverse proxies are used for this purpose. squid is very
popular, also, in apache 2.2 mod_proxy + mod_cache is looking pretty sweet
;)
Any kind of code explaining the process would be highly appreciated...
the only place in here you would need any php code would be caching sql
queries on the webserver. its not too difficult really (but there is a
large gradient of complexity), here is a super trivial example,
$query = 'some sql';
if(in_cache($query))
return fetch_from_cache($query);
else {
$resultSet = mysql_query($query);
store_in_cache($query, $resultSet);
return $resultSet;
}
-nathan
[PHP] Caching options - trunkcache?
Hi there, I am looking for a replacement of php trunkcache. As far as I can see, there is no further development and I had to take it offline due a system update and compatibility issues. What would you guys recommend for a free caching system on a LAMP environment running php 4.x apache 1.x and mysql 3.x Thank you for any advice. Merlin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching options - trunkcache?
Merlin wrote: Hi there, I am looking for a replacement of php trunkcache. As far as I can see, there is no further development and I had to take it offline due a system update and compatibility issues. What would you guys recommend for a free caching system on a LAMP environment running php 4.x apache 1.x and mysql 3.x caching what exactly? opcodes? query results? abitrary data structures? 'pre-compiled' templates? html output? elephants? try here: http://php.net/apc or here?: http://www.google.nl/search?q=php4+caching ps - there are currently no projects that support elephant caching, I'm fairly sure. Thank you for any advice. Merlin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching options - trunkcache?
Merlin wrote:
I am looking for a replacement of php trunkcache.
I think you meant turck mmcache?
have a look at these:
http://eaccelerator.net (derivative of mmcache last release: 2006/02/15)
http://www.php-accelerator.co.uk/
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Clive.
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Re: [PHP] Caching options - trunkcache?
clive schrieb: Merlin wrote: I am looking for a replacement of php trunkcache. I think you meant turck mmcache? have a look at these: http://eaccelerator.net (derivative of mmcache last release: 2006/02/15) http://www.php-accelerator.co.uk/ thanx I tried php-accelerator. Lets see if this will bring some extra performance. Merlin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching options - trunkcache?
APC is getting rolled into PHP 6, allegedly. So that's kind of a no-brainer to choose, imho, as then you can be forwards-compatible with something that turns into the PHP Dev Teams' maintenance work instead of your own. Zend Cache may still be faster, as they got the jump on the PHP code caching game. So if you've got the $$$, benchmark both and see which helps you more. YMMV NAIAA IANAL On Mon, March 12, 2007 7:18 am, Merlin wrote: Hi there, I am looking for a replacement of php trunkcache. As far as I can see, there is no further development and I had to take it offline due a system update and compatibility issues. What would you guys recommend for a free caching system on a LAMP environment running php 4.x apache 1.x and mysql 3.x Thank you for any advice. Merlin -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving 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
[PHP] Caching problems .. I think
Hi guys
I have a rather simple setup:
A few forms chained after each other (the first leds to the second which
leeds to the third and so on)
I´m using sessions - and starting each page like this:
header('Expires: ' . gmdate('D, d M Y H:i:s', (time() + (60 * 10))) . '
GMT');
session_cache_limiter('private_no_expire');
session_start();
... which I believe gives each page (and form result) a caching time of
10 minutes. The problem is that when using the back button in IE - IE
complains about the page and tells med that this page is the result of a
form and that the content has been blocked.
Can anyone tell me how to awoid this problem, so the backbutton can be
used, and stil give each page a caching time of 10 minutes?
--
Regards Søren Schimkat
www.schimkat.dk
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Re: [PHP] caching parsed XML files as DOM objects in memory
I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? I think you might want to avoid trying to do it the Java way in PHP. PHP is share-none by architectural design, not accident, so that you can scale up by throwing as much cheap/stock hardware at it as you can afford instead of being forced to buy a single bigger hardware box in the center for the shared data. It would probably make a lot more sense to store whatever you use to uniquely identify your XML source and the results in a database or filesystem, and then compare time-stamps in some simple business logic to decide to re-parse or serve from cache. Yes, that does just foist off the shared-data to the database, or file-system -- but those systems are specifically designed to handle this task for a long time now with a lot of heavily tested and optimized code. PHP and even Java can't really match that level of testing/optimization yet simply due to relative ages. If db and filesystem are too slow or you already have too many machines running this code-base, you could write your own PHP XML cache server that takes an XML id and either gets it from the db/file cache, or parses the true original, and set up your own server for this express purpose and really make it scream on speed... That's quite a bit of work, though, and for the simplicity of the code involved, you may be better off writing it as a C application... Or out-sourcing that bit of code to be written with specific timing targets for the employee to meet/beat to get their just due $$$. Thanks for lot of ideas, you are probably right I'm trying to think it the java way. But my main bottleneck is the XML parsing part, so I was trying to avoid it somehow. It is also more slower because my XML is not normal XML, but XHTML file so I need to have resolveExternals=true to parse files with XHTML entities (nbsp; lt; etc.) So I cannot cache my final objects to files or database, because it involves some sort of serialization and later (when accessing the cache) some unserialization (the slow parse part). That was the reason I thought about caching in memory. I'm sure I can setup some XML cache server but again, how will I exchange data with it? I cannot move all object trees between servers (XML files couldn't be serialized). There is last chance to write some C extension, but why use PHP then? I can write it all in C, also with my own HTTP server :) I think there should be some way to have all objects (including PHP internal) stored somewhere in memory and living all the time the web server lives. It solves many types of problems. Petr -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching parsed XML files as DOM objects in memory
On Wed, October 5, 2005 8:11 am, Petr Smith wrote: is it possible to cache parsed XML files somehow? I think this is the wrong question... I mean, OF COURSE, it's possible to cache them SOMEHOW. You could toss them in your file system, or a database, insert a machine with squid on it into the chain, or train an army of squirrels to memorize the XML. That last one might be impractical, as you'd need to breed super-smart squirrels first :-) I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? I think you might want to avoid trying to do it the Java way in PHP. PHP is share-none by architectural design, not accident, so that you can scale up by throwing as much cheap/stock hardware at it as you can afford instead of being forced to buy a single bigger hardware box in the center for the shared data. It would probably make a lot more sense to store whatever you use to uniquely identify your XML source and the results in a database or filesystem, and then compare time-stamps in some simple business logic to decide to re-parse or serve from cache. Yes, that does just foist off the shared-data to the database, or file-system -- but those systems are specifically designed to handle this task for a long time now with a lot of heavily tested and optimized code. PHP and even Java can't really match that level of testing/optimization yet simply due to relative ages. If db and filesystem are too slow or you already have too many machines running this code-base, you could write your own PHP XML cache server that takes an XML id and either gets it from the db/file cache, or parses the true original, and set up your own server for this express purpose and really make it scream on speed... That's quite a bit of work, though, and for the simplicity of the code involved, you may be better off writing it as a C application... Or out-sourcing that bit of code to be written with specific timing targets for the employee to meet/beat to get their just due $$$. -- 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] caching parsed XML files... FALSE advice, still not working
Petr Smith wrote:
Jasper Bryant-Greene wrote:
Petr Smith wrote:
is it possible to cache parsed XML files somehow? I'm writing
template library based on XML. But it's not very efficient to create
new DomDocument, load XML template, process it and show on every page
hit. XML parsing is not very fast, and because I'm parsing XHTML with
entities, all DTD's are parsed too. I thought about something similar
to java - there I can have servlet which lives all the time the
server lives. It can load XML and parse it only for the first time
and send DOM objects to another servlets.
I need something similar with PHP, can it be done?
This question seems to come up every other week on this list. Have a
look at APC[1]; you can cache objects with its apc_store() and
apc_fetch() functions.
[1] http://php.net/apc
Thanks, looks usable.. I hope it can synchronize successfully between
different calls on heave load. I'll try it, I don't know why I missed it
when browsing documentation.
Petr
Hi,
it's not working at all. And it could never work. I don't think it's
funny to write false advices to people every other week.
I've installed APC cache, tried to save XML. It was not working.
apc_fetch returned NULL every time.
$dom = apc_fetch(dom);
if ($dom === false) {
$dom = new DomDocument();
$dom-load(browsers.html);
$store = apc_store(dom, $dom);
echo store finished: $store;
}
echo $dom-saveXML();
When I looked into documentation for APC - there is this sentence: And
apc_store() currently doesn't work at all for (internal) classes in PHP5
right now.. And all the XML stuff is what? Internal PHP5 classes!
Please don't confuse people with false edvices next time. Better to say
nothing then solutions that are not working. I lost lot of time and got
only ton of disapointment.
And still no solution to my problem :(.
Petr
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Re: [PHP] caching parsed XML files... FALSE advice, still not working
Petr Smith wrote: it's not working at all. And it could never work. I don't think it's funny to write false advices to people every other week. I've installed APC cache, tried to save XML. It was not working. apc_fetch returned NULL every time. [snip] When I looked into documentation for APC - there is this sentence: And apc_store() currently doesn't work at all for (internal) classes in PHP5 right now.. And all the XML stuff is what? Internal PHP5 classes! I can only apologise for your wasted time -- I seem to remember it working but may have been caching a different class; it was a while ago. Perhaps Rasmus or someone with more knowledge of APC internals could comment? I find APC very useful but it would be extremely useful to be able to cache the DOMDocument class. Could you please post the link to the docs from which you got that quote? I cannot find any words to that effect on either the php.net or pecl.php.net websites, but maybe I'm not looking hard enough... -- Jasper Bryant-Greene Freelance web developer http://jasper.bryant-greene.name/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching parsed XML files as DOM objects in memory
it's not working at all. And it could never work. I don't think it's funny to write false advices to people every other week. I've installed APC cache, tried to save XML. It was not working. apc_fetch returned NULL every time. [snip] When I looked into documentation for APC - there is this sentence: And apc_store() currently doesn't work at all for (internal) classes in PHP5 right now.. And all the XML stuff is what? Internal PHP5 classes! I can only apologise for your wasted time -- I seem to remember it working but may have been caching a different class; it was a while ago. Perhaps Rasmus or someone with more knowledge of APC internals could comment? I find APC very useful but it would be extremely useful to be able to cache the DOMDocument class. Could you please post the link to the docs from which you got that quote? I cannot find any words to that effect on either the php.net or pecl.php.net websites, but maybe I'm not looking hard enough... Apology accepted. Sorry for my (maybe) too offensive language, I was disappointed it's not working. This quote is from TODO Known Bugs file inside apc distribution archive (v3.0.8). Petr -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] caching parsed XML files as DOM objects in memory
Hi, is it possible to cache parsed XML files somehow? I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? Thanks for any ideas, Petr ps. I found this project http://www.vl-srm.net/ which maybe can do something I need, but it looks dead. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] caching parsed XML files as DOM objects in memory
Sadly I thought of doing the same thing only to have my face crapped on by this extreme lameness: http://www.php.net/manual/en/ref.session.php Some types of data can not be serialized thus stored in sessions. It includes resource variables or objects with circular references (i.e. objects which passes a reference to itself to another object). If you figure out a way, please let me/us know... *sigh* -Original Message- From: Petr Smith [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 05, 2005 6:11 AM To: php-general@lists.php.net Subject: [PHP] caching parsed XML files as DOM objects in memory Hi, is it possible to cache parsed XML files somehow? I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? Thanks for any ideas, Petr ps. I found this project http://www.vl-srm.net/ which maybe can do something I need, but it looks dead. -- 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] caching parsed XML files as DOM objects in memory
Petr Smith wrote: is it possible to cache parsed XML files somehow? I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? This question seems to come up every other week on this list. Have a look at APC[1]; you can cache objects with its apc_store() and apc_fetch() functions. [1] http://php.net/apc -- Jasper Bryant-Greene Freelance web developer http://jasper.bryant-greene.name/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching parsed XML files as DOM objects in memory
Jasper Bryant-Greene wrote: Petr Smith wrote: is it possible to cache parsed XML files somehow? I'm writing template library based on XML. But it's not very efficient to create new DomDocument, load XML template, process it and show on every page hit. XML parsing is not very fast, and because I'm parsing XHTML with entities, all DTD's are parsed too. I thought about something similar to java - there I can have servlet which lives all the time the server lives. It can load XML and parse it only for the first time and send DOM objects to another servlets. I need something similar with PHP, can it be done? This question seems to come up every other week on this list. Have a look at APC[1]; you can cache objects with its apc_store() and apc_fetch() functions. [1] http://php.net/apc Thanks, looks usable.. I hope it can synchronize successfully between different calls on heave load. I'll try it, I don't know why I missed it when browsing documentation. Petr -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Caching Database Information
Hello all, I have some questions regarding caching information with PHP. I was thinking that I might cache all information that won't be changing for long periods of time...possibly only once a day or so, instead of querying the database for information every time. My question is: is there such as thing as too much caching? Can I cache too much and therefore negate the advantages of caching? Thanks, Paul _ Is your PC infected? Get a FREE online computer virus scan from McAfee® Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching Database Information
On Wed, 2004-08-25 at 14:52, Paul Higgins wrote: Hello all, I have some questions regarding caching information with PHP. I was thinking that I might cache all information that won't be changing for long periods of time...possibly only once a day or so, instead of querying the database for information every time. My question is: is there such as thing as too much caching? Can I cache too much and therefore negate the advantages of caching? As long as the overhead in caching remains less than the overhead in not caching, I would say maybe. :) A single database query returns an array. You use the array to build a page. You cache the page. The cached version of the page gets hit 100 times. Is the overhead in pulling the file from your cache 100 times less than re-doing the query 100 times? That depends. Some databases have query caching, and so do most file systems. There are also PHP caching tools like TurkeMM Cache and Zend that cache byte code only. I'd bench it both ways and then decide based on the queries, the development environment, and the cache timeout limitations/requirements. -- Greg Donald -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Caching Database Information
On Wed, 2004-08-25 at 16:32, Scott Hyndman wrote: I've found that caching LARGE datasets can be really useful. Filesystem access is blazing fast, and at least in my case, I've found it to be significantly faster than the time it takes to process a query and return the dataset. Too much caching? I don't think so. Just use it in the right places. You don't want to be caching something that needs to show change from second to second. Just a hint.. You might try your Reply to all option next time. Especially since it's a list serve, and especially since I'm not the poster of the original question. -- Greg Donald -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching Database Information
Paul Higgins wrote: Hello all, I have some questions regarding caching information with PHP. I was thinking that I might cache all information that won't be changing for long periods of time...possibly only once a day or so, instead of querying the database for information every time. My question is: is there such as thing as too much caching? Take a look at running Squid in httpd accelarator mode as well. Other options to look at include installing turck (this only caches the compiled version of the script - not the scripts output). also i believe there is an extension named memcached or something similar which may be what you want. -- Raditha Dissanayake. http://www.radinks.com/sftp/ | http://www.raditha.com/megaupload Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader Graphical User Inteface. Just 128 KB | with progress bar. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] innodb + php caching issues
Might want to try to send aa 'commit' command to the database. Just the first thing that enters my mind - -Original Message- - From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] - Sent: zondag 14 september 2003 7:55 - To: [EMAIL PROTECTED] - Subject: [PHP] innodb + php caching issues - - Hi there i have experienced a wierd bug , where after i - commit a query in innodb that change wont be viewable until - i refresh the page , this doesnt happen in a similar system - framwork using myisam tables the change is viewable, what - could be the problem ? should i just give nocache headers - for a quick fix? - - -- - 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] caching program
* Thus wrote Andrea Tricco ([EMAIL PROTECTED]): For the images that don't contain http://; my program is already able to get them from the web server. In other cases, I have to determine the name of the directory where the html page is located. Thus, the equivocal paths are the problem, for example: www.php.net/manual/it/index.php www.php.net/manual/it/ www.php.net/manual/it The reply of the server web is the same in the three cases. Not true, Like I had posted ealier the last url apache will redirect the person requesting the file to: www.php.net/manual/it/ php does this transparently with the current method you are using to obtain the files. Curt -- I used to think I was indecisive, but now I'm not so sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program...
* Thus wrote Andrea Tricco ([EMAIL PROTECTED]): Hi, Hello I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; http://php.net/ - apache serves index.php http://php.net- apache redirects to http://php.net/ http://php.net/index.php - servers index.php All three of these will show the same content. Does a method exist to know the name of the file received form web server? Nope I would like to write a program that automatically downloads the images inserted into a html page. The odds are if you right one, it wont be 100% compatible with all sites. What in essance you are doing is writing a web browser, and there are a lot of things that need to be taken care of to handle special cases. For this reason, I need to determine the paths of the images in order to get them from the web server. For starters probably reading up on HTML and HTTP specifications might be a good place to start. ( http://w3c.org ) In other words, my program should work as the Save as function (File menu) of any Web browser. There are alternative choices, there are programs out there like webget and wget that will automatically do what you want to do. You could use those programs with a system call. Can anybody help me? I hope I did already :) Curt -- I used to think I was indecisive, but now I'm not so sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] innodb + php caching issues
Hi there i have experienced a wierd bug , where after i commit a query in innodb that change wont be viewable until i refresh the page , this doesnt happen in a similar system framwork using myisam tables the change is viewable, what could be the problem ? should i just give nocache headers for a quick fix? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] caching program...
Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program...
No way, it might be anything from apache's DirectoryIndex directive. Browsers don't know that either. Andrea Tricco wrote: Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] caching program
Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program
You could pull out all the img src attributes and if they don't contain http://; then prepeand the address of te page then download otherwise just downlocad the url, but to get the page to work in the new location you may have to replace the img src attributes Ryan Gibson --- [EMAIL PROTECTED] On 17/9/03 11:16 am, Andrea Tricco [EMAIL PROTECTED] wrote: Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program
For the images that don't contain http://; my program is already able to get them from the web server. In other cases, I have to determine the name of the directory where the html page is located. Thus, the equivocal paths are the problem, for example: www.php.net/manual/it/index.php www.php.net/manual/it/ www.php.net/manual/it The reply of the server web is the same in the three cases. The input of the my program could be any paths between the mentioned ones. I need to poll out the path www.php.net/manual/it/ Best regards. Andrea - Original Message - From: Ryan Gibson [EMAIL PROTECTED] To: Andrea Tricco [EMAIL PROTECTED]; php-general [EMAIL PROTECTED] Sent: Friday, September 12, 2003 12:26 PM Subject: Re: [PHP] caching program You could pull out all the img src attributes and if they don't contain http://; then prepeand the address of te page then download otherwise just downlocad the url, but to get the page to work in the new location you may have to replace the img src attributes Ryan Gibson --- [EMAIL PROTECTED] On 17/9/03 11:16 am, Andrea Tricco [EMAIL PROTECTED] wrote: Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program
I'm sorry, but in the previuos email there has been an error. I'm sending correct one. - For the images that contain http://; my program is already able to get them from the web server. In other cases, I have to determine the name of the directory where the html page is located. Thus, the equivocal paths are the problem, for example: www.php.net/manual/it/index.php www.php.net/manual/it/ www.php.net/manual/it The reply of the server web is the same in the three cases. The input of the my program could be any paths between the mentioned ones. I need to poll out the path www.php.net/manual/it/ Best regards. Andrea - Original Message - From: Andrea Tricco [EMAIL PROTECTED] To: php-general [EMAIL PROTECTED] Sent: Wednesday, September 17, 2003 1:11 PM Subject: Re: [PHP] caching program For the images that don't contain http://; my program is already able to get them from the web server. In other cases, I have to determine the name of the directory where the html page is located. Thus, the equivocal paths are the problem, for example: www.php.net/manual/it/index.php www.php.net/manual/it/ www.php.net/manual/it The reply of the server web is the same in the three cases. The input of the my program could be any paths between the mentioned ones. I need to poll out the path www.php.net/manual/it/ Best regards. Andrea - Original Message - From: Ryan Gibson [EMAIL PROTECTED] To: Andrea Tricco [EMAIL PROTECTED]; php-general [EMAIL PROTECTED] Sent: Friday, September 12, 2003 12:26 PM Subject: Re: [PHP] caching program You could pull out all the img src attributes and if they don't contain http://; then prepeand the address of te page then download otherwise just downlocad the url, but to get the page to work in the new location you may have to replace the img src attributes Ryan Gibson --- [EMAIL PROTECTED] On 17/9/03 11:16 am, Andrea Tricco [EMAIL PROTECTED] wrote: Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- 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] caching program
once upon a long ago someone (i belive his name is Hrvoje Niksic) wrote a program called wget so that people do not have to do all this :-) Andrea Tricco wrote: Hi, I'm using the function file_get_contents() to replicate the content of a remote html page on my server. But, the function file_get_contents() works even when the name of the file is not specified. For example: http://www.php.net; rather that http://php.net/index.php; Does a method exist to know the name of the file received form web server? I would like to write a program that automatically downloads the images inserted into a html page. For this reason, I need to determine the paths of the images in order to get them from the web server. In other words, my program should work as the Save as function (File menu) of any Web browser. Can anybody help me? Best regards. Andrea -- http://www.radinks.com/upload Drag and Drop File Uploader. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching program
On 17/9/03 12:18 pm, Andrea Tricco [EMAIL PROTECTED] wrote: Thus, the equivocal paths are the problem, for example: www.php.net/manual/it/index.php www.php.net/manual/it/ For the above examples the url is the string up to the last '/' char (as long as the string after the '/' char has an extension ie a dot and three or chars) www.php.net/manual/it This is a bit more tricky, you could just grab the url with and without the '/' char and compare the two strings (messy I know) and probably won't work every time, but what does! Ryan Gibson --- [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] caching question
I am using Apache 1.3.27 and PHP 4.3.3.RC1 and someone has told me that my web page cannot be cached but I cannot figure out why. My friend tells me my pages all keep sending this in their headers: Cache-Control: post-check=0, must-revalidate, no-store, no-cache, pre-check=0 But I can't figure out why the headers are set like this. I am not setting any headers so I am wondering if it is a setting in my web server, php.ini file or some other php scripts I have running in the background. Also print_r($HTTP_SERVER_VARS) gives one server variable to be: [HTTP_CACHE_CONTROL] = max-age=0 What does this variable mean and where was it set? Any and all help appreciated! Jean-Christian Imbeault -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] caching question
Jean-Christian IMbeault [EMAIL PROTECTED] wrote: I am using Apache 1.3.27 and PHP 4.3.3.RC1 and someone has told me that my web page cannot be cached but I cannot figure out why. My friend tells me my pages all keep sending this in their headers: Cache-Control: post-check=0, must-revalidate, no-store, no-cache, pre-check=0 But I can't figure out why the headers are set like this. I am not setting any headers so I am wondering if it is a setting in my web server, php.ini file or some other php scripts I have running in the background. In most cases you dont want your php output to get cached, and so php will do this automaticly. You can stop that from happening by sending the same header with public as the paramater: Cache-Control: public You also might want to set a few others: /* if you are sending a file send the last modified time */ 'Last-Modified: ' . gmdate(D, d M Y H:i:s, $unix_ts . ' GMT') /* for old ie bug and older proxy caches */ 'Pragma: no-cache'); /* if this applies */ 'Expires: '. gmdate(D, d M Y H:i:s, time()-(1200). ' GMT') Curt. -- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] caching variables and preloading functions
If you are not running PHP under a Windows platform and can compile extensions into PHP the most efficient way to solve problem #2 may be with a PHP extension I developed. It handles constants and provides a type of persistent variable too. It has been immensely useful for my projects. http://pwee.sourceforge.net/ Lance -Original Message- From: ssamuel [mailto:[EMAIL PROTECTED] Sent: Sunday, May 25, 2003 7:05 PM To: [EMAIL PROTECTED] Subject: [PHP] caching variables and preloading functions Hi, I am looking for a way to do the following with PHP on Apache. 1) I have a list of functions that I would like loaded into memory when the Apache server starts so that other .PHPs can call these functions at any time. Somewhat of a way to expand the API set for PHP. i.e., Say I have a file named init.php which has many functions defined. When the Apache server loads, I want this file to be sourced so that these functions are visible to all other phps. 2) I have several variables, that I want to be cached at server init time. These variables are global variables and live until the server is restarted and can be accessed by any .phps. Are there any ways to do these? thanks, sunil. -- 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] PHP caching ideas?
Is the general logic to slice the page into some general pieces. For example ones that have always general data and those that change. Then the ones that don't change are streamed to the user using passthrough and the rest of the page is generated dynamically with the newest relevant data. If a page has parts that change and not you can make frameset. In a frame that does not change you send caching headers. Durign generating page you can cache in memory unchangeble parts. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP caching ideas?
The most efficient way would be to cache the heaviest parts of the scripts. Such parts are database connections and its queries, templates rendering and any other things like XML, large data loops etc.. What I would suggest is to modulate your application logic by sections of different functionalities. There you can control the things easier. For instance, while loading an article out of the database that also includes several other queries, you can check against the most recent updated field relevant to that row and compare to the current time. If it changed since last visit load it again and save (by passing to some caching script of yours) as a cached file. Something like that. I do it pretty often, especially for dynamic downloads. Maxim Maletsky On Sat, 12 Oct 2002 13:33:32 + Hans Himmel [EMAIL PROTECTED] wrote: Hello there, How do most people here create their caching logic for PHP scripts? The problem is that most PHP scripts have some part of the page that is unique to each request (let it be current time, e-mail list in an e-mail reading application, session IDs on some servers, or whatever). Is the general logic to slice the page into some general pieces. For example ones that have always general data and those that change. Then the ones that don't change are streamed to the user using passthrough and the rest of the page is generated dynamically with the newest relevant data. Or are there any other good ideas to solve PHP caching problems? Thanks, Hans _ Join the worlds largest e-mail service with MSN Hotmail. http://www.hotmail.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Maxim Maletsky [EMAIL PROTECTED] www.PHPBeginner.com // where PHP Begins -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP caching ideas?
Smarty template will allow you to cache certain pieces. http://smarty.php.net olinux --- Krzysztof Dziekiewicz [EMAIL PROTECTED] wrote: Is the general logic to slice the page into some general pieces. For example ones that have always general data and those that change. Then the ones that don't change are streamed to the user using passthrough and the rest of the page is generated dynamically with the newest relevant data. If a page has parts that change and not you can make frameset. In a frame that does not change you send caching headers. Durign generating page you can cache in memory unchangeble parts. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP caching ideas?
Though, I would not reccomend it to you as your caching mechanism. Only for when you are actually using Smarty.. which is still makes no much sence since Smarty is saving the compiled version of your file. Maxim Maletsky [EMAIL PROTECTED] www.PHPBeginner.com // where PHP Begins On Mon, 14 Oct 2002 08:02:37 -0700 (PDT) olinux [EMAIL PROTECTED] wrote: Smarty template will allow you to cache certain pieces. http://smarty.php.net olinux --- Krzysztof Dziekiewicz [EMAIL PROTECTED] wrote: Is the general logic to slice the page into some general pieces. For example ones that have always general data and those that change. Then the ones that don't change are streamed to the user using passthrough and the rest of the page is generated dynamically with the newest relevant data. If a page has parts that change and not you can make frameset. In a frame that does not change you send caching headers. Durign generating page you can cache in memory unchangeble parts. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Maxim Maletsky [EMAIL PROTECTED] www.PHPBeginner.com // where PHP Begins -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] PHP caching ideas?
Hello there, How do most people here create their caching logic for PHP scripts? The problem is that most PHP scripts have some part of the page that is unique to each request (let it be current time, e-mail list in an e-mail reading application, session IDs on some servers, or whatever). Is the general logic to slice the page into some general pieces. For example ones that have always general data and those that change. Then the ones that don't change are streamed to the user using passthrough and the rest of the page is generated dynamically with the newest relevant data. Or are there any other good ideas to solve PHP caching problems? Thanks, Hans _ Join the worlds largest e-mail service with MSN Hotmail. http://www.hotmail.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Caching Problem
Hi
I have a problem with caching on IE 5.1.4 on Mac Os X. (PHP 4.0.5)
The page I want to use is a simple file upload page that works by:
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
}
?
Rest of document.
The form action returns to the same page (to allow you to upload another file).
This works fine, but if you press the refresh btn, the file keeps uploading pictures.
If you click in the address bar press return, this does not happen.
I have included the http headers to prevent caching as described in the documentation,
but this hasn't seemed to work.
Is this a quirk of the browser/os combination or is there something i'm missing.
TIA
Roland
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Re: [PHP] Caching Problem
Hi, Roland,
There might be a better way to do this, but you could try to use the
header() function after your upload takes place to redirect the browser to
the same page, using GET. Something like...
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
header(Location: http://.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].);
}
?
Or something like that. HTH,
Jed
On the threshold of genius, Roland Swingler wrote:
Hi
I have a problem with caching on IE 5.1.4 on Mac Os X. (PHP 4.0.5)
The page I want to use is a simple file upload page that works by:
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
}
?
Rest of document.
The form action returns to the same page (to allow you to upload another
file).
This works fine, but if you press the refresh btn, the file keeps uploading
pictures. If you click in the address bar press return, this does not
happen.
I have included the http headers to prevent caching as described in the
documentation, but this hasn't seemed to work.
Is this a quirk of the browser/os combination or is there something i'm
missing.
TIA
Roland
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Re: [PHP] Caching Problem
Use header(Location: page.php); to redirect the browser, you should
allways do it after a post that changes or adds or deletes some data on
the server.
Roland Swingler wrote:
Hi
I have a problem with caching on IE 5.1.4 on Mac Os X. (PHP 4.0.5)
The page I want to use is a simple file upload page that works by:
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
}
?
Rest of document.
The form action returns to the same page (to allow you to upload another file).
This works fine, but if you press the refresh btn, the file keeps uploading pictures.
If you click in the address bar press return, this does not happen.
I have included the http headers to prevent caching as described in the
documentation, but this hasn't seemed to work.
Is this a quirk of the browser/os combination or is there something i'm missing.
TIA
Roland
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Re: [PHP] Caching Problem
Oops. There was an extra period at the end there (after PHP_SELF).
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
header(Location: http://.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']);
}
?
On the threshold of genius, Jed Verity wrote:
Hi, Roland,
There might be a better way to do this, but you could try to use the
header() function after your upload takes place to redirect the browser to
the same page, using GET. Something like...
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
header(Location: http://.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].);
}
?
Or something like that. HTH,
Jed
On the threshold of genius, Roland Swingler wrote:
Hi
I have a problem with caching on IE 5.1.4 on Mac Os X. (PHP 4.0.5)
The page I want to use is a simple file upload page that works by:
?php
if ($HTTP_POST_VARS['submit'] == submit) {
then upload the file...
}
?
Rest of document.
The form action returns to the same page (to allow you to upload another
file).
This works fine, but if you press the refresh btn, the file keeps uploading
pictures. If you click in the address bar press return, this does not
happen.
I have included the http headers to prevent caching as described in the
documentation, but this hasn't seemed to work.
Is this a quirk of the browser/os combination or is there something i'm
missing.
TIA
Roland
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[PHP] caching dynamic thumbnail
just would like to confirm here whether thumbnail images that i generated dynamically with gd is cached by browsers. a) i have a html frontend to call the php script that does that thumbnail. this html file, say, view.htm contains these lines: html img src=thumb.php?image=../images/001.jpgx=150resize=1 /html b) the thumbnailing works perfectly. but is this thumbnail cached inside my browser. how do i find this out ? c) if the answer to question b) above is 'No', is it a good idea to generate thumbnails dynamically but PHYSICALLY writing it to disk (with extra checking of course; is the thumb previously was available, is it the desired size etc etc) please advise. -- roger __ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Caching problem...?
Hello, I'm having a problem with my Apache/PHP setup. I create a PHP page and test it in a browser, and the page loads and everything is fine. However, when I make a change to my PHP script and reload the page to see my changes, the same output from PHP is given to me. I have to save the page as a new file and load the new file to see any changes. I've turned off caching in my browser (Mozilla) and I've even closed the browser and reloaded it, and I get the same page. The only thing that works is restarting Apache. I'm running Debian with the Debian packages for Apache (1.3.23) and PHP (4.1.2). I've tried looking at the configuration and I know there has to be an easy answer, but I can't find it. I've read the documentation for both, and I've searched the web for answers, but I just don't know what's going on here. Any help someone could provide would be greatly appreciated. Thank-you. Adam Schlag -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Caching Problem
Hey all, I'm trying not to cache a page. I have the following code: $return = split( , exec(vmstat)); $cpu_top = 100; $return = $cpu_top - $return[count($return) -1]; which returns the amount of idle cpu time. The problem is this, every time the page is loaded, it always show the first value when the page was first loaded. I tried adding : header(Cache-Control: no-store, no-cache, must-revalidate); header(Cache-Control: post-check=0, pre-check=0, false); header(Pragma: no-cache); all randomly, and together, but nothing seems to work. I can run one of my binaries in a forever loop causing the cpu not ever to be idle, but still nothing. Help? Thanks in advance, Paul -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Caching in php?
hello, i used asp and it seems there is an application object which can help in caching of data. (e.g., http://www.aspfaqs.com/aspfaqs/ShowFAQ.asp?FAQID=142). is this possible using php? what can i do to use caching on my website which is totally database driven? thanks/erick __ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching in php?
is this possible using php? what can i do to use caching on my website which is totally database driven? try PEAR::Cache http://pear.php.net -- Wolfram -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Caching in php?
There is Zend Cache, it expensive and you have to pay per processor. That drove folks to develop APC (Alternitive PHP Cache) which is open source. http://apc.communityconnect.com/ They take the PHP source and compile it into machine code and stores that code, which saves porcessor overhead when the page is loaded again. APC worked well for me, but that's not where my bottleneck is, mine is with database access so I wanted to cache database queries. I couldn't find any application that did what I wanted so I wrote a class that handles caching queries. In programming it I wanted it to be a transparent as possible and make using it just like using the PEAR mysql module so I could add it to my site with minor modifications. Here is a little on how it works. It checks to see if the query is cached, if not it queries the database. It takes the data returned from the query and stores it in a xml file, which I have on a RAM disk for speed. It returns a result object similiar to the result object from the PEAR mysql stuff. And that object has a FetchRow function just like the mysql result object so it drops right into existing code. It's new and I haven't truely tested it's proformance yet but if you are interested in it. Let me know, I'm positive that people will be able to improve the code in the class which would be cool. On Wed, 2002-02-06 at 09:23, Erick Papadakis wrote: hello, i used asp and it seems there is an application object which can help in caching of data. (e.g., http://www.aspfaqs.com/aspfaqs/ShowFAQ.asp?FAQID=142). is this possible using php? what can i do to use caching on my website which is totally database driven? thanks/erick __ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Jeff Bearer, RHCE Webmaster PittsburghLIVE.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] caching madness
hi all,
i have tried everything not to get a page to cache..
server-side:
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: '. gmdate('D, d M Y H:i:s') .' GMT');
header('Cache-Control: no-cache, must-revalidate');
header('Pragma: no-cache')
client-side:
meta http-equiv = Expires content = Tue, 20 Aug 1996 14:25:27 GMT
does anyone have any idea how to make sure pages do not cache?
many thanks in advance,
christian
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[PHP] caching and IE 5
Is anyone else having fun and games with IE 5.0 and caching? I have the no-cache code (below) before anything else in my index file. Following that an include file is pulled in that has a form with a text input field that echos the date and time. Whenever I refresh the page the time does not update to reflect the current time, it sticks with the time that was displayed when the page was first loaded. Even when I close the browser and reopen it the time remains the same. Any pointers on this issue? ?php header (Expires: Mon, 14 Jul 1963 05:00:00 GMT);// Date in the past header (Last-Modified: . gmdate(D, d M Y H:i:s) . GMT); // always modified header (Cache-Control: no-cache, must-revalidate); // HTTP/1.1 header (Pragma: no-cache); ? input type=text name=search_name value=?php echo SEARCH .date(F jS Y G:m A) ? Thx in advance. Karl
Re: [PHP] caching and IE 5
On Thu, 9 Aug 2001, Karl Phillipson wrote: Is anyone else having fun and games with IE 5.0 and caching? I have the no-cache code (below) before anything else in my index file. Following that an include file is pulled in that has a form with a text input field that echos the date and time. Whenever I refresh the page the time does not update to reflect the current time, it sticks with the time that was displayed when the page was first loaded. Even when I close the browser and reopen it the time remains the same. Any pointers on this issue? ?php header (Expires: Mon, 14 Jul 1963 05:00:00 GMT);// Date in the past header (Last-Modified: . gmdate(D, d M Y H:i:s) . GMT); // always modified header (Cache-Control: no-cache, must-revalidate); // HTTP/1.1 header (Pragma: no-cache); ? input type=text name=search_name value=?php echo SEARCH .date(F jS Y G:m A) ? Thx in advance. Karl I do something messy when nothing else works... get ready for it hehe a href=?=$PHP_SELF??iesux=?=rand(10,20)?Click here to refresh/a Told you it was ugly. Twigman... -- 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] caching and IE 5
Try this head META Http-Equiv=Cache-Control Content=no-cache META Http-Equiv=Pragma Content=no-cache META Http-Equiv=Expires Content=0 /head works for me - try loading www.shanghaiguide.com/main/index.php3 - should do time, and display a different image every time. cheers, lawrence. -Original Message- From: Karl Phillipson [mailto:[EMAIL PROTECTED]] Sent: August 9, 2001 5:21 PM To: '[EMAIL PROTECTED]' Subject: [PHP] caching and IE 5 Is anyone else having fun and games with IE 5.0 and caching? I have the no-cache code (below) before anything else in my index file. Following that an include file is pulled in that has a form with a text input field that echos the date and time. Whenever I refresh the page the time does not update to reflect the current time, it sticks with the time that was displayed when the page was first loaded. Even when I close the browser and reopen it the time remains the same. Any pointers on this issue? ?php header (Expires: Mon, 14 Jul 1963 05:00:00 GMT);// Date in the past header (Last-Modified: . gmdate(D, d M Y H:i:s) . GMT); // always modified header (Cache-Control: no-cache, must-revalidate); // HTTP/1.1 header (Pragma: no-cache); ? input type=text name=search_name value=?php echo SEARCH .date(F jS Y G:m A) ? Thx in advance. Karl -- 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] caching and IE 5
Hmmm, I substituted the date(F jS Y G:m A) function for a time() function and this works fine, on refresh the updated timestamp is visible. (btw system is apache 1.20 running on Hed Rat 7.1 - php 4.05) Can anyone explain why the time() function refreshes and returns the correct value but the date(F jS Y G:m A) does not?? Seems the problem might not be an IE5 caching issue at all ?? Regs, Karl == Karl Phillipson PHP SQL Programmer Saffron Hill Ventures 67 Clerkenwell Road London EC1R 5BL Saffron Hill: 0207 693 8300 Direct Line: 0207 693 8318 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: 09 August 2001 10:37 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: RE: [PHP] caching and IE 5 Try this head META Http-Equiv=Cache-Control Content=no-cache META Http-Equiv=Pragma Content=no-cache META Http-Equiv=Expires Content=0 /head works for me - try loading www.shanghaiguide.com/main/index.php3 - should do time, and display a different image every time. cheers, lawrence. -Original Message- From: Karl Phillipson [mailto:[EMAIL PROTECTED]] Sent: August 9, 2001 5:21 PM To: '[EMAIL PROTECTED]' Subject: [PHP] caching and IE 5 Is anyone else having fun and games with IE 5.0 and caching? I have the no-cache code (below) before anything else in my index file. Following that an include file is pulled in that has a form with a text input field that echos the date and time. Whenever I refresh the page the time does not update to reflect the current time, it sticks with the time that was displayed when the page was first loaded. Even when I close the browser and reopen it the time remains the same. Any pointers on this issue? ?php header (Expires: Mon, 14 Jul 1963 05:00:00 GMT);// Date in the past header (Last-Modified: . gmdate(D, d M Y H:i:s) . GMT); // always modified header (Cache-Control: no-cache, must-revalidate); // HTTP/1.1 header (Pragma: no-cache); ? input type=text name=search_name value=?php echo SEARCH .date(F jS Y G:m A) ? Thx in advance. Karl -- 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] caching
It seems still not to work. i have tried all the header options mentioned. adding a query string is out of the option I am using javascript and it dont like that stuff. and my browser still caches everything and drives me nuts. maybe i am putting it in the wrong file? but i really cant imagine what other file it should be in. the set up is like this. I have button.php which is just a function that creates and image and save it to a file. and then mypage.php that uses this function to generate a menu and then one include to header.html which contains the actual menu and calls to the images saved. I placed the headers at the top of mypage.php. where else could i put them? and my browser still caches unless i conpletely turn off caching. What am i doing wrong? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0 this code works good... Place this code at the top of the files where you want then to always refresh i.e. no cache header (Pragma: no-cache); header (Cache-Control: no-cache, must-revalidate, max_age=0); header (Expires: 0); Have fun Kevin - Original Message - From: Jon Yaggie [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 4:36 PM Subject: [PHP] caching Ok I am dynamically creating images. my problem is my browser is caching the images (or at least half ot them - i see no particular system to which) i have no idea how to stop this. i have tried using the header Cache-Control: no-cahe However it seems to have no helped. maybe i am using it wrongly? is there another method i can clear the browser cache? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0 this code works good... Place this code at the top of the files where you want then to always refresh i.e. no cache header (Pragma: no-cache); header (Cache-Control: no-cache, must-revalidate, max_age=0); header (Expires: 0); Have fun Kevin - Original Message - From: Jon Yaggie [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 4:36 PM Subject: [PHP] caching Ok I am dynamically creating images. my problem is my browser is caching the images (or at least half ot them - i see no particular system to which) i have no idea how to stop this. i have tried using the header Cache-Control: no-cahe However it seems to have no helped. maybe i am using it wrongly? is there another method i can clear the browser cache? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0
AW: [PHP] caching
you could attach a random number as a get parameter img src=test.php?nothing=2637846294626378264 that image would hardly ever be cached... sebastian -Ursprüngliche Nachricht- Von: Jon Yaggie [mailto:[EMAIL PROTECTED]] Gesendet: Donnerstag, 31. Mai 2001 00:36 An: [EMAIL PROTECTED] Betreff: [PHP] caching Ok I am dynamically creating images. my problem is my browser is caching the images (or at least half ot them - i see no particular system to which) i have no idea how to stop this. i have tried using the header Cache-Control: no-cahe However it seems to have no helped. maybe i am using it wrongly? is there another method i can clear the browser cache? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0 -- 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] caching
This is what I use for the header information.. I don't know if it will work for an image or not but it works nicely for text fields that are dynamically populated.. anyway if you aren't adding this extra little bit at the end of the header function you might want to give it a shot... header (Cache-Control: no-cache, must-revalidate); Jay Paulson Internet Program Director LBJS [EMAIL PROTECTED] - Original Message - From: Jon Yaggie [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, May 30, 2001 5:36 PM Subject: [PHP] caching Ok I am dynamically creating images. my problem is my browser is caching the images (or at least half ot them - i see no particular system to which) i have no idea how to stop this. i have tried using the header Cache-Control: no-cahe However it seems to have no helped. maybe i am using it wrongly? is there another method i can clear the browser cache? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0 -- 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] caching
Ok I am dynamically creating images. my problem is my browser is caching the images (or at least half ot them - i see no particular system to which) i have no idea how to stop this. i have tried using the header Cache-Control: no-cahe However it seems to have no helped. maybe i am using it wrongly? is there another method i can clear the browser cache? Thank You, Jon Yaggie www.design-monster.com And they were singing . . . '100 little bugs in the code 100 bugs in the code fix one bug, compile it again 101 little bugs in the code 101 little bugs in the code . . .' And it continued until they reached 0
[PHP] Caching Authentification
Hi all I use sessions the authenticate users, but I seem to have a problem. This is what happens: 1) A user logs in on PC one with his username and password. (So far so good) 2) Another user logs in with his details on the same computer -- He is logged in with his details but the page displayed is the one of the other user unless he refreshes the page. I thought this was because the page might be cached, but when I set the header(cache-control: no-cache) the meta tag http-equiv=Expires content=-1 it still produces the same effect. How can I solve this problem? Haemelinck Steve Personal: Haemelinck.be - Developers Unite :) Junior WebDeveloper http://www.haemelinck.be:8080/ [EMAIL PROTECTED] Work: MCT IT Consulting - Take consulting 2 the next level Junior IT Consultant http://www.mct.be/ [EMAIL PROTECTED] Haemelinck Steve Personal: Haemelinck.be - Developers Unite :) Junior WebDeveloper http://www.haemelinck.be:8080/ [EMAIL PROTECTED] Work: MCT IT Consulting - Take consulting 2 the next level Junior IT Consultant http://www.mct.be/ [EMAIL PROTECTED] -- 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]
