/**
* foreces a garbage collection
* @static
* @return void
*/
public static function collectGarbage($keepItems = array())
{
// close mysql-connection
Pimcore_Resource::close();
$protectedItems = array("pimcore_config_system", "Zend_Locale", "pimcore_tag_block_current", "pimcore_tag_block_numeration", "pimcore_user", "Zend_Translate", "pimcore_admin_user", "pimcore_admin_initialized", "Pimcore_API_Plugin_Broker", "pimcore_config_website", "pimcore_editmode", "pimcore_error_document", "pimcore_site");
if (is_array($keepItems) && count($keepItems) > 0) {
$protectedItems = array_merge($protectedItems, $keepItems);
}
$registryBackup = array();
foreach ($protectedItems as $item) {
if (Zend_Registry::isRegistered($item)) {
$registryBackup[$item] = Zend_Registry::get($item);
}
}
Zend_Registry::_unsetInstance();
foreach ($registryBackup as $key => $value) {
Zend_Registry::set($key, $value);
}
Pimcore_Resource::reset();
}