public static function contentClassIDs() { $userContentClassIDs = array(); $ini = eZINI::instance('content.ini'); $userDatatypes = $ini->variable("DataTypeSettings", "UserDataTypes"); $userContentClassIDs = array(); foreach ($userDatatypes as $datatypeIdentifier) { $userContentClassIDs = array_merge($userContentClassIDs, eZContentClass::fetchIDListContainingDatatype($datatypeIdentifier)); } return $userContentClassIDs; }