3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print array_map('foo', array('test'),array(1,2,3)); function foo($a, $b){ print $b.$a; }
Output for 5.4.0 - 7.1.0
1test23 Notice: Array to string conversion in /in/HC9Lq on line 3 Array
Output for 4.3.0 - 5.3.29
1test23Array