3v4l.org

run code in 300+ PHP versions simultaneously
<?php class W { const X = [1 => 2, 3 => 4]; public function f() { $a = 5; if (isset(static::X[$a])) { print "$a exists\n"; } else { print "$a doesn't exists\n"; } } } $x = new W; $x->f();
Output for git.master, git.master_jit, rfc.property-hooks
5 doesn't exists

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:
50.13 ms | 401 KiB | 8 Q