Online PHP editor | refs for 2ICmo

<?php $first = ['page' => ['title' => 'old title', 'description' => 'old description']]; $second = ['page' => ['title' => 'new title']]; $merge = array_merge_recursive($first, $second); $replace = array_replace_recursive($first, $second); assert($merge['page']['title'] === 'new title'); assert($merge['page']['description'] === 'old description'); assert($replace['page']['title'] === 'new title'); assert($replace['page']['description'] === 'old description');