第1个回答 2017-03-24
// 给你写段参考代码吧:
$arr1 = ['a' => 20, 'b' => 30, 'c' => 40];
$arr2 = ['a' => 20, 'b' => 30, 'ggg' => 40];
$arr3 = ['a' => 20, 'ddd' => 30, 'c' => 40];
foreach ($arr1 as $key => $val) {
if (isset($arr2[$key])) {
$arr1[$key] += $arr2[$key];
}
if (isset($arr3[$key])) {
$arr1[$key] += $arr3[$key];
}
}
var_dump($arr1);本回答被网友采纳