<?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);
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