- array_map: documentation ( source)
- var_dump: documentation ( source)
- array_reduce: documentation ( source)
- array_merge: documentation ( source)
- compact: documentation ( source)
<?php
$array = [
[1, 30, 33],
['id' => 5]
];
$result = array_reduce($array, function (array $result, array $array) {
return array_merge($result, array_map(function ($id) { return compact('id'); }, $array));
}, []);
var_dump($result);