3v4l.org

run code in 300+ 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);

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30.38 ms | 402 KiB | 5 Q