How to add a new column to each row of a 2d array?

Question

I have an array that looks like this:

$array = Array (
    [0] => Array ( [site_id] => 89193)
    [1] => Array ( [site_id] => 89093)
    [2] => Array ( [site_id] => 3059 )
)

What I want to do is to add a new pair to the array, how can I do so?

For example, next to site_id, I want to add the key [site_name] and its value.

Answer 1

foreach ($array as &$child) {
    $child['site_name'] = $value;
}

or, without references:

foreach (array_keys($array) as $key) {
   $array[$key]['site_name'] = $value;
}