- var_dump: documentation ( source)
<?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);
?>