3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { protected function get() { return 'A'; } } class B1 extends A {} class B2 extends A { protected function get() { return 'A'; } } class C extends A { public function foo(A $a) { echo $a->get(); // will fail depends on $a implementation // liskov substitution principle failed } } $a = new A(); $b1 = new B1(); $b2 = new B2(); $c = new C(); $c->foo($b1); // ok $c->foo($b2); // ok
Output for git.master, git.master_jit, rfc.property-hooks
AA

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
120.19 ms | 405 KiB | 5 Q