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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
foo\bar

preferences:
58.01 ms | 972 KiB | 4 Q