3v4l.org

run code in 300+ PHP versions simultaneously
<?php $wl = array( 'word2' => 'link2.com', 'word3' => 'link3.com', 'word4' => 'link4.com', 'word5' => 'link5.com' ); shuffle($wl); $newarr = array_keys($wl); print_r($newarr);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.13, 7.3.0 - 7.3.1
Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
preferences:
156.12 ms | 404 KiB | 227 Q