3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($a = $b = []; count($a) < 8; $b = &$a[], $b = $a) ; var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
array(8) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> &array(5) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> *RECURSION* } [5]=> &array(6) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> &array(5) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> *RECURSION* } [5]=> *RECURSION* } [6]=> &array(7) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> &array(5) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> *RECURSION* } [5]=> &array(6) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> &array(5) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> &array(4) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> &array(3) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> &array(2) { [0]=> &array(1) { [0]=> *RECURSION* } [1]=> *RECURSION* } [2]=> *RECURSION* } [3]=> *RECURSION* } [4]=> *RECURSION* } [5]=> *RECURSION* } [6]=> *RECURSION* } [7]=> *RECURSION* }

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:
43.57 ms | 421 KiB | 8 Q