3v4l.org

run code in 200+ PHP versions simultaneously
<?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); ?>
Output for 7.2.0 - 7.4.1
array(3) { ["item1"]=> array(3) { [0]=> int(0) [1]=> int(2) [2]=> int(4) } ["item2"]=> array(3) { [0]=> int(0) [1]=> int(2) [2]=> int(4) } ["item3"]=> array(3) { [0]=> int(0) [1]=> int(2) [2]=> int(4) } }