As the title states I'm searching for a unique solution in multi arrays. PHP is not my world so I can't make up a good and fast solution. I basically get this from the database: http://pastebin.com/vYhFCuYw .

I want to check on the 'id' key, and if the array contains a duplicate 'id', then the 'aantal' should be added to each other.

So basically the output has to be this: http://pastebin.com/0TXRrwLs .

Thanks in advance!

EDIT As asked, attempt 1 out of many:

function checkDuplicates($array) {
    $temp = array();
    foreach($array as $k) {
        foreach ($array as $v) {
            $t_id = $k['id'];
            $t_naam = $k['naam'];
            $t_percentage = $k['percentage'];
            $t_aantal = $k['aantal'];
            if ($k['id'] == $v['id']) {
                $t_aantal += $k['aantal'];
                array_push($temp, array(
                        'id' => $t_id,
                        'naam' => $t_naam,
                        'percentage' => $t_percentage,
                        'aantal' => $t_aantal,
                    )
                );
            }
        }
    }
    return $temp;
}