3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace strict { class Foo {} } namespace { error_reporting(E_ALL); use strict; }
Output for 5.3.0 - 5.3.29, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: The use statement with non-compound name 'strict' has no effect in /in/KcYKC on line 10
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Fatal error: You seem to be trying to use a different language... in /in/KcYKC on line 10
Process exited with code 255.
preferences:
267.86 ms | 403 KiB | 407 Q