3v4l.org

run code in 300+ PHP versions simultaneously
<?php use foo\bar; #[bar] function foo() { } print (new ReflectionFunction('foo'))->getAttributes()[0]->getName();
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
foo\bar
preferences:
60.42 ms | 406 KiB | 5 Q