function callClass($file, $class_name, $method)
{
if (file_exists($file)) {
require_once $file;
if (method_exists($class_name, $method)) {
self::$log[] = $class_name . '::' . $method;
call_user_func_array(array($class_name, $method), self::$params);
}
}
self::$params = array();
}