array merge

array_merge.php

<?php

/**
 * 將陣列合併, 如果有相同的值, 後面的值會覆蓋前面的值
 * @param  array  &$array1 [description]
 * @param  array  &$array2 [description]
 * @return [type]          [description]
 */
function array_merge_recursive_distinct (array &$array1, array &$array2){
    $merged = $array1;

    foreach($array2 as $key => &$value){
        if (is_array ( $value ) && isset ( $merged [$key] ) && is_array ( $merged [$key] ) ){
            $merged [$key] = array_merge_recursive_distinct ( $merged [$key], $value );
        }else{
            $merged [$key] = $value;
        }
    }

    return $merged;
}