3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 0 => 0, 1 => 'HEADING', 2 => 'TEXT', 3 => 'LINK', ]; $key = "HEADING"; echo array_search($key, $array);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
1
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
0
preferences:
134.75 ms | 403 KiB | 174 Q