3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = 0; $a = &$x; $b = &$x; $x = 2; unset($x); $b++; echo $a . ', ' . $b;
based on 6rqU3
Output for 4.3.0 - 7.2.0
3, 3