- print_r: documentation ( source)
- array_merge: documentation ( source)
<?php
$arr = [
'id' => 123,
'changed' => true
];
$arr2 = [
'link' => '',
'result' => true,
'id' => false,
'changed' => false
];
print_r($arr);
$arr = array_merge($arr2, $arr);
print_r($arr);