3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function call() { self::method1(); } function method1() { $this->method2(); } function method2() { echo 'Base definition'; } } class B extends A { function method2() { echo 'Override'; } } (new B)->call();
Output for 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 - 8.3.27, 8.4.1 - 8.4.14
Override
preferences:
144.49 ms | 407 KiB | 5 Q