3v4l.org

run code in 300+ PHP versions simultaneously
<?php spl_autoload_register(function ($class) { echo $class . "\n"; if (0 === strpos(ltrim($class, '/'), 'Symfony\Component\EventDispatcher')) { if (file_exists($file = __DIR__.'/../'.substr(str_replace('\\', '/', $class), strlen('Symfony\Component\EventDispatcher')).'.php')) { require_once $file; } } }); namespace a; new \doesntexist;
Output for 5.3.0 - 5.3.18, 5.4.0 - 5.4.8
Fatal error: Namespace declaration statement has to be the very first statement in the script in aHq6O on line 10
Process exited with code 255.

preferences:
174.08 ms | 1387 KiB | 35 Q