Merge array by key and sum another key [duplicate]

Answer 1

ok, I found it

    $items = array();
    foreach($prepare as $k=>$v) {
        if(!isset($items[$v['name']])) {
            $items[$v['name']] = $v;
        } else {
            $items[$v['name']]['price'] += $v['price'];
        }
    }