3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1,2,3); $b = &$a; foreach($a as $v) { echo "$v\n"; unset($a[1]); } var_dump($a);
based on ru9Zv
Output for 7.0.0 - 7.2.0
1 2 3 array(2) { [0]=> int(1) [2]=> int(3) }
Output for 5.5.0 - 5.6.28
1 3 array(2) { [0]=> int(1) [2]=> int(3) }