PHP way to clear cache.

<?php
$magePath = 'app/Mage.php';
require_once $magePath;
umask(0);
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);
$types = array("config", "layout", "block_html", "translate", "collections", "eav", "config_api", "full_page");
foreach($types as $type) {
    Mage::app()->getCacheInstance()->cleanType($type);
}
Mage::app()->cleanCache();