3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ConcreteBar { function test() { return "concrete"; } } class ApplicationBar { function test() { return "application"; } } // Alias Bar class_alias('ApplicationBar', 'Bar'); class Foo extends Bar { } $foo = new Foo; var_dump($foo->test());

preferences:
52.22 ms | 402 KiB | 5 Q