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<?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' ] ]; $expected = []; foreach($array as $k=>$v){ $expected[$k]=end($v); } print '<pre>'; print_r($expected);
Output for 5.6.38, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
<pre>Array ( [item-1] => item-child-2 [item-2] => item-child-3 [item-3] => item-child-1 )
preferences:
143.21 ms | 408 KiB | 5 Q