请问这样的2个数组怎么求差集，并返回

[月如枫]

2个二维数组 怎么才能求出差集

array(10) {
  [0] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3146716485077"
  }
  [1] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3184917563105"
  }
  [2] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3146716485075"
  }
  [3] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(5) "17.80"
    ["k_stock"] => string(2) "12"
    ["k_sku_id"] => string(13) "3146716485085"
  }
  [4] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(5) "17.80"
    ["k_stock"] => string(1) "8"
    ["k_sku_id"] => string(13) "3146716485083"
  }
  [5] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3146716485073"
  }
  [6] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3146716485086"
  }
  [7] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(5) "17.80"
    ["k_stock"] => string(2) "16"
    ["k_sku_id"] => string(13) "3146716485081"
  }
  [8] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(5) "17.80"
    ["k_stock"] => string(2) "52"
    ["k_sku_id"] => string(13) "3146716485087"
  }
  [9] => array(4) {
    ["k_pid"] => string(1) "7"
    ["k_prices"] => string(4) "0.00"
    ["k_stock"] => string(1) "0"
    ["k_sku_id"] => string(13) "3146716485078"
  }
}

array(11) {
  [0] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485079"
  }
  [1] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485086"
  }
  [2] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485073"
  }
  [3] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(5) "17.80"
    ["kl_stock"] => string(1) "8"
    ["kl_sku_id"] => string(13) "3146716485083"
  }
  [4] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(5) "17.80"
    ["kl_stock"] => string(2) "12"
    ["kl_sku_id"] => string(13) "3146716485085"
  }
  [5] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485075"
  }
  [6] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3184917563105"
  }
  [7] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485077"
  }
  [8] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(5) "17.80"
    ["kl_stock"] => string(2) "16"
    ["kl_sku_id"] => string(13) "3146716485081"
  }
  [9] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(5) "17.80"
    ["kl_stock"] => string(2) "52"
    ["kl_sku_id"] => string(13) "3146716485087"
  }
  [10] => array(4) {
    ["kl_pid"] => string(1) "7"
    ["kl_prices"] => string(4) "0.00"
    ["kl_stock"] => string(1) "0"
    ["kl_sku_id"] => string(13) "3146716485078"
  }
}

[xuzuning]

按说子集的键不同是不能比较的（找不到对应关系）
不过对于你的示例数据，可以这样

$a = array(
  0 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3146716485077",
  ),
  1 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3184917563105",
  ),
  2 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3146716485075",
  ),
  3 => array(
    "k_pid" => "7",
    "k_prices" => "17.80",
    "k_stock" => "12",
    "k_sku_id" => "3146716485085",
  ),
  4 => array(
    "k_pid" => "7",
    "k_prices" => "17.80",
    "k_stock" => "8",
    "k_sku_id" => "3146716485083",
  ),
  5 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3146716485073",
  ),
  6 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3146716485086",
  ),
  7 => array(
    "k_pid" => "7",
    "k_prices" => "17.80",
    "k_stock" => "16",
    "k_sku_id" => "3146716485081",
  ),
  8 => array(
    "k_pid" => "7",
    "k_prices" => "17.80",
    "k_stock" => "52",
    "k_sku_id" => "3146716485087",
  ),
  9 => array(
    "k_pid" => "7",
    "k_prices" => "0.00",
    "k_stock" => "0",
    "k_sku_id" => "3146716485078",
  ),
);

$b = array(
  0 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485079",
  ),
  1 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485086",
  ),
  2 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485073",
  ),
  3 => array(
    "kl_pid" => "7",
    "kl_prices" => "17.80",
    "kl_stock" => "8",
    "kl_sku_id" => "3146716485083",
  ),
  4 => array(
    "kl_pid" => "7",
    "kl_prices" => "17.80",
    "kl_stock" => "12",
    "kl_sku_id" => "3146716485085",
  ),
  5 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485075",
  ),
  6 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3184917563105",
  ),
  7 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485077",
  ),
  8 => array(
    "kl_pid" => "7",
    "kl_prices" => "17.80",
    "kl_stock" => "16",
    "kl_sku_id" => "3146716485081",
  ),
  9 => array(
    "kl_pid" => "7",
    "kl_prices" => "17.80",
    "kl_stock" => "52",
    "kl_sku_id" => "3146716485087",
  ),
  10 => array(
    "kl_pid" => "7",
    "kl_prices" => "0.00",
    "kl_stock" => "0",
    "kl_sku_id" => "3146716485078",
  ),
);
foreach($a as $k1=>$s) {
  foreach($b as $k2=>$v)
    if(array_values($s) == array_values($v)) {
      unset($b[$k2]);
      unset($a[$k1]);
    }
}
$r = array_merge($a, $b);
print_r($r);

Array
(
    [0] => Array
        (
            [kl_pid] => 7
            [kl_prices] => 0.00
            [kl_stock] => 0
            [kl_sku_id] => 3146716485079
        )

)

[月如枫]

谢谢，终于解决了！！