<?
$arOne = [
'length ' => '100',
'width' => '200',
'height ' => '300',
];
$arTwo = [
'0' => [
'length ' => '110',
'width' => '240',
'height ' => '360'
],
'1' => [
'length ' => '90',
'width' => '160',
'height ' => '320'
],
'2' => [
'length ' => '140',
'width' => '210',
'height ' => '300'
],
];
?>