php back trace

$callers=debug_backtrace();
            foreach($callers as $call) {

                $line = empty($call['line']) ? false  : $call['line'];
                $file = empty($call['file']) ? false : $call['file'];
                $class = empty($call['class']) ? false : $call['class'];
                $function = empty($call['function']) ? false : $call['function'];

                echo sprintf("%s: %s %s->%s\n", $line, $file, $class, $function );
            }
            dd($validator->errors());