3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = ['a', 'b', 'c']; $b = $a . 'dd';
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
Notice: Array to string conversion in /in/8nJQQ on line 4