3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface B {} class A implements B {} class C extends A {} $a = new A; $c = new C; var_dump($c instanceof $a); var_dump($a instanceof $c); echo "C:\n"; var_dump($c instanceof C); var_dump($c instanceof A); var_dump($c instanceof B); echo "A:\n"; var_dump($a instanceof C); var_dump($a instanceof A); var_dump($a instanceof B);
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(false) C: bool(true) bool(true) bool(true) A: bool(false) bool(true) bool(true)

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:
40.79 ms | 401 KiB | 8 Q