Online PHP editor | refs for pYepQ

<?php $array = [ ['a' => 1, 'b' => 2], ['a' => 2, 'b' => 2] ]; $data = new stdClass(); $data->count = 0; $data->a = 0; $data->b = 0; $cb = function($value, $key, &$data) { $data->count = $data->count + 1; $data->a = $data->a + $value['a']; $data->b = $data->b + $value['b']; }; array_walk($array, $cb, $data); var_dump($data);