3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface IFoo { public function bar(); } class Foo { public function bar() { echo 'hier'; } } class FooAdapter implements IFoo { protected $foo; public function __construct() { $this->foo = new Foo(); } public function bar() { $this->foo->bar(); } } $foo = new FooAdapter(); $foo->bar();
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
hier
preferences:
225.36 ms | 404 KiB | 319 Q