- var_export: documentation ( source)
<?php
$array1 = [
[123, "Title #1", "Name #1"],
[124, "Title #2", "Name #2"],
];
$array2 = [
'name' => ['Image001.jpg', 'Image002.jpg']
];
foreach ($array1 as $i => &$row) {
$row[] = $array2['name'][$i];
}
var_export($array1);