<?php namespace Symfony\Component\ErrorHandler\Tests\Fixtures; class ErrorHandlerThatUsesThePreviousOne { private static $previous; public static function register() { $handler = new static(); self::$previous = set_error_handler([$handler, 'handleError']); return $handler; } public function handleError() { return \call_user_func_array(self::$previous, \func_get_args()); } }