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run code in 300+ PHP versions simultaneously
<?php $array = [ 'item-1' => [ 'item-child-1', 'item-child-2' ], 'item-2' => [ 'item-child-1', 'item-child-2' , 'item-child-3'], 'item-3' => [ 'item-child-1' ] ]; $out = array_map(function ($arr) {return end($arr);}, $array); print_r($out);
Output for 5.6.38, 7.1.0 - 7.1.22, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [item-1] => item-child-2 [item-2] => item-child-3 [item-3] => item-child-1 )

preferences:
68.6 ms | 408 KiB | 5 Q