3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [ 0 => 0, 1 => 'HEADING', 2 => 'TEXT', 3 => 'LINK', ]; $key = "HEADING"; echo array_search($key, $array);
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
0