php to cache search content.

I use a method with php and .htaccess to cache search results.
The two files are begin_caching.php and end_caching.php
In the begin_caching.php there is written
"$cachetime = 8000000; // Seconds to cache files for"

At the time of caching I thought that 8000000 would be long enough time to cache the content. However I do regret that now and want it to be cached forever. Is it enough to change the time here or do I have to cache all pages again changing the cache time ?

As you understand I do not understand this system so it may be a stupid question to you.

 

Lil more details about your methods, maybe some code and a reason for you wanting to cache all search results, I'm a little confused as to why you might want to do this.

 

Here is the method, it works very well.
http://www.ilovejackdaniels.com/php/caching-output-in-php/

What part or where is deciding and telling when to delete the cached files ? What should I change to make the already cached files not getting deleted ?

The reason I am caching is to speed up the loading of pages. My server is not to fast.

 

if (time() - $cachetime < $cachefile_created ) {
//ob_start('ob_gzhandler');
@readfile($cachefile);
//ob_end_flush();
exit();
}

PHP:

if ( true ) would be the quickest way of going around it without changing too much I think.....

 

Thanks krakjoe, but I don`t know php at all. Just managed to install this with a step by step instruction

So it looks like this now:

if (time() - $cachetime < $cachefile_created ) {
//ob_start('ob_gzhandler');
@readfile($cachefile);
//ob_end_flush();
exit();
}

How should it look like if i don`t want the cache to expire ?

 

if ( true ) {
//ob_start('ob_gzhandler');
@readfile($cachefile);
//ob_end_flush();
exit();
}

 

great, thanks a lot. greeeeeeeeeeeeeen