3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { function foo() { echo __CLASS__; // a print get_class($this); // a or b } } class b extends a {} (new b)->foo();
Output for 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
ab
preferences:
61.27 ms | 838 KiB | 4 Q