3v4l.org

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<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); $first = array(key($array) => current($array)); end($array); array_pop($array); array_shift($array); $array = array_merge(array(key($array) => current($array)), $array, $first); print_r($array);
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 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [b] => 1 [a] => 2 )
preferences:
343.78 ms | 406 KiB | 460 Q