- array_map: documentation ( source)
- print_r: documentation ( source)
- array_keys: documentation ( source)
<?php
$data = array(
8, 2, 10, 11, 19, 13, 10
);
$arr = array_map(function($index, $value) {
return array($index, $value);
}, $data, array_keys($data));
print_r($arr);