php语法实现两个数组求和

$arr1 = [1, 2, 3, 4, 5];
$arr2 = [6, 7, 8, 9, 10];
 
// 检查两个数组长度是否相等
if (count($arr1) !== count($arr2)) {
  throw new Exception('数组长度不一致');
}
 
$sum = array_map(function ($a, $b) {
  return $a + $b;
}, $arr1, $arr2);
 
print_r($sum); // 输出[7, 9, 11, 13, 15]