3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $wl = array( 'word2' => 'link2.com', 'word3' => 'link3.com', 'word4' => 'link4.com', 'word5' => 'link5.com' ); shuffle($wl); print_r($wl); $newarr = array_keys($wl); print_r($newarr);
Output for 5.1.0, 5.2.16, 5.3.8, 5.4.43, 5.5.3, 5.5.16, 5.5.29 - 5.5.30, 5.6.12, 7.0.4, 7.1.0
Array ( [0] => link3.com [1] => link4.com [2] => link5.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.4.3, 4.4.9, 5.2.15, 5.3.3, 5.3.13 - 5.3.14, 5.3.19, 5.4.5, 5.4.9, 5.5.8, 5.5.13, 5.5.25, 5.5.31, 5.6.11, 5.6.15, 7.0.14
Array ( [0] => link2.com [1] => link4.com [2] => link5.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.3.0, 5.3.29, 5.5.35, 5.6.17, 7.0.2 - 7.0.3, 7.0.10
Array ( [0] => link3.com [1] => link2.com [2] => link5.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.3 - 4.3.4, 4.3.8, 4.4.5, 5.2.5, 5.2.12, 5.3.10 - 5.3.11, 5.4.16, 5.4.21, 5.6.13, 5.6.23, 7.0.9
Array ( [0] => link2.com [1] => link4.com [2] => link3.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.2.1, 5.3.16, 5.4.27, 5.4.36, 5.4.39, 5.5.18, 5.6.2, 7.0.1, 7.0.8
Array ( [0] => link2.com [1] => link5.com [2] => link3.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.2, 5.3.12, 5.4.37, 5.5.34, 5.6.20, 7.0.0, 7.0.7
Array ( [0] => link4.com [1] => link2.com [2] => link5.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.2.8, 5.5.20, 5.5.22, 5.6.3, 7.0.6
Array ( [0] => link5.com [1] => link4.com [2] => link3.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.1.1, 5.2.3, 5.3.27, 5.4.20, 5.5.2, 5.5.12, 5.6.6, 7.0.5
Array ( [0] => link4.com [1] => link3.com [2] => link5.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.1.4, 5.2.11, 5.4.15, 5.6.1, 5.6.4, 5.6.19, hhvm-3.12.0
Array ( [0] => link4.com [1] => link3.com [2] => link2.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.2.13, 5.3.2, 5.4.0, 5.4.6, 5.4.8, 5.6.7, hhvm-3.10.0
Array ( [0] => link3.com [1] => link2.com [2] => link4.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.4.4, 5.1.3, 5.3.7, 5.3.17, 5.3.22, 5.4.14, 5.4.22, 5.4.41, 5.5.0, 5.5.7, 5.6.8, 5.6.28
Array ( [0] => link2.com [1] => link3.com [2] => link4.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.1.6, 5.2.10, 5.3.28, 5.4.25, 5.4.45, 5.5.4, 5.5.32, 5.5.37, 5.6.24 - 5.6.25
Array ( [0] => link2.com [1] => link5.com [2] => link4.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.0, 4.3.11, 5.0.0, 5.0.5, 5.2.14, 5.3.18, 5.3.23, 5.4.40, 5.6.0, 5.6.22
Array ( [0] => link3.com [1] => link5.com [2] => link2.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.9, 5.3.24, 5.4.2, 5.4.13, 5.4.19, 5.5.1, 5.5.38, 5.6.9, 5.6.21
Array ( [0] => link2.com [1] => link3.com [2] => link5.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.3.5, 5.4.4, 5.4.32 - 5.4.34, 5.4.42, 5.5.23, 5.6.18
Array ( [0] => link3.com [1] => link5.com [2] => link4.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.6, 5.0.1, 5.2.7, 5.2.9, 5.3.6, 5.3.15, 5.3.26, 5.4.10, 5.4.35, 5.5.5, 5.6.16
Array ( [0] => link5.com [1] => link2.com [2] => link3.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.4.30 - 5.4.31, 5.5.19, 5.5.27, 5.6.14
Array ( [0] => link4.com [1] => link5.com [2] => link2.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.5, 4.4.1, 4.4.7, 5.0.3, 5.1.5, 5.2.4, 5.4.12, 5.4.28, 5.4.44, 5.5.9, 5.5.14, 5.5.24, 5.6.10
Array ( [0] => link5.com [1] => link3.com [2] => link2.com [3] => link4.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.2.2, 5.3.4, 5.3.25, 5.4.26, 5.6.5
Array ( [0] => link5.com [1] => link2.com [2] => link4.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.4.0, 5.2.17, 5.4.1, 5.4.7, 5.4.29, 5.5.10, 5.5.36
Array ( [0] => link4.com [1] => link5.com [2] => link3.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.2.0, 5.3.20, 5.4.23, 5.5.28, 5.5.33
Array ( [0] => link5.com [1] => link4.com [2] => link2.com [3] => link3.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 5.0.2, 5.4.3, 5.4.38, 5.5.6, 5.5.11, 5.5.21, 5.5.26
Array ( [0] => link5.com [1] => link3.com [2] => link4.com [3] => link2.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.4.2, 4.4.6, 4.4.8, 5.1.2, 5.3.1, 5.3.9, 5.4.17, 5.5.15
Array ( [0] => link3.com [1] => link4.com [2] => link2.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )
Output for 4.3.1, 4.3.7, 4.3.10, 5.0.4, 5.2.6, 5.3.21, 5.4.11, 5.4.18, 5.4.24
Array ( [0] => link4.com [1] => link2.com [2] => link3.com [3] => link5.com ) Array ( [0] => 0 [1] => 1 [2] => 2 [3] => 3 )