3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace App\Domain\Messenger { class Message {} } namespace { use App\Domain\Messenger\Message; $messengerMessage = new Message; var_dump($messengerMessage::class); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
string(28) "App\Domain\Messenger\Message"
Output for 7.4.0 - 7.4.33
Fatal error: Cannot use ::class with dynamic class name in /in/MvQk6 on line 12
Process exited with code 255.
Output for 7.3.0 - 7.3.33
Fatal error: Dynamic class names are not allowed in compile-time ::class fetch in /in/MvQk6 on line 12
Process exited with code 255.
preferences:
65.46 ms | 408 KiB | 5 Q