PHP Caching

[johny]

I have set the following properties in order to speed up my pages:

ob_start("ob_gzhandler");

The problem is I have a user profile page and when the user updates their picture, the new one won't show up unless they refresh the page. Even when the click on the picture which is pointing to a .jpg file, it shows the old .jpg file from cache unless they refresh that page as well.

How can i cache the php pages so it loads faster, but on certain pages remove this cache so it reloads everytime

Thanks -- This message may have been cut off and the rest will only be shown to members. To become a member, click here --

[maddy]

There are various ways of implementing a cache to do this, but the easiest to implement (if maybe not the most efficient) is to use a bit of extra PHP code in your scripts. Most of this example is based on this site, but could easily be applied to any site.

For the purposes of this example it helps to have a small understanding of my website. Basically each page location (e.g. "site/caching") has each / replaced by a . and that file (which contains all the content) is included into the template (so includes/design.caching in this case). The actual filename ends up in a variable called $reqfilename.

Lets look at the most basic, and rather useless, cache. This little snippet of code will save the output of a call for the "home" page into a file called home.html
<?php
// start the output buffer
ob_start(); ?>

//Your usual PHP script and HTML here ...

<?php
$cachefile = &q -- This message may have been cut off and the rest will only be shown to members. To become a member, click here --