$sumArray = array_map(function ($a1, $b1) { return $a1 + $b1; }, $array1, $array2);. For deeper nesting it wont work. ... <看更多>

<?php. /**. * array_merge_recursive_numeric function. Merges N arrays into one array AND sums the values of identical keys. * WARNING: If keys have values ... ... <看更多>

While I was finding if there are some function that do that I found this on php.net ... array &$array2 ) { $merged = $array1; foreach ( $array2 as $key ... ... <看更多>