<?php

/**
 * W3 Total Cache advanced cache module
 */
if (!defined('W3TC_IN_MINIFY')) {
    if (!defined('W3TC_DIR')) {
        define('W3TC_DIR', WP_CONTENT_DIR . '/plugins/w3-total-cache');
    }
    
    if (!@is_dir(W3TC_DIR) || !file_exists(W3TC_DIR . '/inc/define.php')) {
        if (defined('WP_ADMIN')) { // lets don't show error on front end
            @header('HTTP/1.1 503 Service Unavailable');
            die(sprintf('<strong>W3 Total Cache Error:</strong> some files appear to be missing or out of place. Please re-install plugin or remove <strong>%s</strong>.', __FILE__));
        }
    } else {
        require_once W3TC_DIR . '/inc/define.php';
        require_once W3TC_DIR . '/lib/W3/PgCache.php';
        
        $w3_pgcache = & W3_PgCache::instance();
        $w3_pgcache->process();
    }
}