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<?php $array = ['item1', 'item2', 'item3']; $array3 = array(); foreach ($array as $sleutel){ $array2 = array(); for ($i = 0; $i < 3; $i++){ $array2[]= $i*2; } $array3[$sleutel] = $array2; } var_dump($array3); ?>

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62.39 ms | 402 KiB | 5 Q