3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function foo ($x) { function check($a) { var_dump($a); } check($x); } } $bar = new A; $bar->foo(111); check(222);
Output for 7.1.25 - 7.1.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
int(111) int(222)

preferences:
154.78 ms | 407 KiB | 5 Q