3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = range(4,17); print_r( array_filter($a, function($x){ return strpos( (string)$x, '5' ); }) );
based on bn1DR
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1
Array ( [11] => 15 )