3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('a'=>'{a}', 'b' => '{b}'); $b = array_merge(array('a' => '[a]'), $a); var_dump($a); var_dump($b);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { ["a"]=> string(3) "{a}" ["b"]=> string(3) "{b}" } array(2) { ["a"]=> string(3) "{a}" ["b"]=> string(3) "{b}" }