3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { var $p; } $a = new A; $b = $a; debug_zval_dump($a, $b); var_dump($a === $b); // bool(true) $b->p = 1; debug_zval_dump($a, $b); var_dump($a === $b); // bool(false)
Output for git.master, git.master_jit, rfc.property-hooks
object(A)#1 (1) refcount(4){ ["p"]=> NULL } object(A)#1 (1) refcount(4){ ["p"]=> NULL } bool(true) object(A)#1 (1) refcount(4){ ["p"]=> int(1) } object(A)#1 (1) refcount(4){ ["p"]=> int(1) } 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:
60.8 ms | 401 KiB | 8 Q