Logger::findFrame PHP Method

    public function findFrame($function_name, $shift = 0)
    {
        $backtrace = debug_backtrace();
        while ($bt = array_shift($backtrace)) {
            if ($bt['function'] == $function_name) {
                while ($shift--) {
                    $bt = array_shift($backtrace);
                }
                return $bt;
            }
        }
        return array();
    }