Cache problem?

[Anon]

I have a page with a large form on it. When i go to the page the form reads data from a table and display on its fields.

My problem is that 90% of times the page fails to load completely displaying a popup browser error message (on IE, i'm no sure in Netscape) and i need to re-load it to show all the form.

I think the problem is becouse a part of the page is cached. To solve the problem i tried this:

header ("Expires: Mon, 26 Jul 1997 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");

...BUT THE PROBLEM STILL EXISTS.

Can someone help me????
Thanks.

[Anon]

Are you behind a proxy? If that's the case, the "Cache-Control: no-cache, must-revalidate" header is being ignored. To make sure proxies revalidate, the "proxy-revalidate" parameter must be entered in the cache-control header.

I don't know exactly how that works though (i.e. i don't know if problems can arise if you use both)

[Anon]

Thanks for the advice, but i'm not behind a proxy.

The solution was to put a memory size limit field in php.ini

I doesn't know why my old version of php lacks of that field.