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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 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
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.

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