3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace foo; #[Blah] function doit() { echo __FUNCTION__, "\n"; } echo doit::class, "\n";
Output for 7.4.0 - 7.4.30, 8.0.1 - 8.0.22, 8.1.0 - 8.1.9
foo\doit

preferences:
16.44 ms | 409 KiB | 5 Q