/**
* Forces a garbage collection.
* @static
* @return void
*/
public static function collectGarbage($keepItems = array())
{
// close mysql-connection
Resource::close();
$protectedItems = array("Zend_Locale", "Zend_View_Helper_Placeholder_Registry", "Zend_View_Helper_Doctype", "Zend_Translate", "Zend_Navigation", "Pimcore_API_Plugin_Broker", "pimcore_tag_block_current", "pimcore_tag_block_numeration", "Config_system", "pimcore_admin_user", "Config_website", "pimcore_editmode", "pimcore_error_document", "pimcore_site", "Pimcore_Resource_Mysql");
if (is_array($keepItems) && count($keepItems) > 0) {
$protectedItems = array_merge($protectedItems, $keepItems);
}
if (is_array(self::$globallyProtectedItems) && count(self::$globallyProtectedItems)) {
$protectedItems = array_merge($protectedItems, self::$globallyProtectedItems);
}
$registryBackup = array();
foreach ($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);
}
Resource::reset();
// force PHP garbage collector
gc_enable();
$collectedCycles = gc_collect_cycles();
\Logger::debug("garbage collection finished, collected cycles: " . $collectedCycles);
}