3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a', 'b'); foreach ($a as $key => $val) { $a[1] .= 'a'; var_dump($a); } var_dump($a);
based on o0CZG
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> string(1) "a" [1]=> string(2) "ba" } array(2) { [0]=> string(1) "a" [1]=> string(3) "baa" } array(2) { [0]=> string(1) "a" [1]=> string(3) "baa" }
Output for hhvm-3.10.0

Process exited with code 153.