3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new class { }; class_alias($a::class, 'foo'); if (true) { class bar extends foo { } }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Output for 7.4.33
Fatal error: Cannot use ::class with dynamic class name in /in/pDFTL on line 5
Process exited with code 255.
preferences:
87.49 ms | 406 KiB | 5 Q