webserviceXXL

1. (ROOT)/filexyz.php
2. (ROOT)/wp-content/plugins/oiopub-direct/purchase.php

Thanks for your help but i think my phrasing was unfortunate.

i mean that i have a single php file on my site which is completely independent from all other pages in this template. so usually it’s ok that w3tc automatically insert the minified version of the css file. But not for this single php file.

i already tried to insert your code directly in this file. Unfortunately without success.

Before WP 2.5 it was possible to use:
$lastposts = get_posts('numberposts=10&orderby=comment_count&offset=0');

Is there no function that works simpler ones as the solution of pravin?