<?php



/**

 * W3 Total Cache advanced cache module

 */

if (!defined('ABSPATH')) {

    die();

}



/**

 * Abort W3TC loading if WordPress is upgrading

 */

if (defined('WP_INSTALLING') && WP_INSTALLING)

    return;



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';



        $redirect = w3_instance('W3_Redirect');

        $redirect->process();



        $config = w3_instance('W3_Config');

        if ($config->get_boolean('pgcache.enabled')) {

            $w3_pgcache = w3_instance('W3_PgCache');

            $w3_pgcache->process();

        }

    }

}

