XenForoHint $allowedFunctions = 'is_array|is_object|is_string|isset|empty' . '|array|array_key_exists|count|in_array|array_search' . '|preg_match|preg_match_all|strpos|stripos|strlen|trim' . '|ceil|floor|round|max|min|mt_rand|rand' . '|strval|intval';