3v4l.org

run code in 500+ PHP versions simultaneously
<?php $arr = ['monkey' => 1, 'giraffe' => 2, 'lion' => 3, 'walrus' => 4, 'zebra' => 5, 'narwhal' => 6]; $arr += array_splice($arr, array_search('rhino', array_keys($arr)), 1); var_export($arr);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
array ( 'giraffe' => 2, 'lion' => 3, 'walrus' => 4, 'zebra' => 5, 'narwhal' => 6, 'monkey' => 1, )
preferences:
75.46 ms | 1145 KiB | 4 Q