Php 需要关于比较和合并两个阵列的帮助吗？

我有以下两个来自同一数据库的数组，它们使用相同的查询来获取这两个数组。两者都包含关于具有两个不同行项目（物料清单）的单个销售订单的信息。第一个具有行项目

ItemID=600271

，第二个具有行项目

ItemID=600274

，但正如您在下面看到的，它们都具有相同的销售订单编号

[CustomerSONo]=>[7]=>**15020**

我遇到的困难：尝试使用

内置函数

，但我很难创建一个循环来比较和合并两者，然后将差异存储在单独的变量中

那么如何比较或合并这两个数组呢

//我想这样结束

  Customer ID     Customer_Bill_Name.......        Item ID 1            Item ID 2           
    XXX001           XXX Company Name......           WH15 02             600278      

//质疑

    $result= --select statement--;
    while($row = mysqli_fetch_array($result)) {
        print_r($row);
     }

//数组1

     Array ( 
           [0] => XXX001 
           [CustomerId] => XXX001 
           [1] => XXX Company Name.*
           [Customer_Bill_Name] => XXX Company Name.* 
           [2] => DHE 
           [WhichShipVia] => DHE [3] => 
           [INV_POSOOrderNumber] => [4] => 2014-12-19 
           [ShipByDate] => 2014-12-19 [5] => 
           [GoodThruDate] => [6] => 
           [CustomerSONo] => [7] => 15020 
           [Reference] => 15020 [8] => 2014-11-25 
           [TransactionDate] => 2014-11-25 [9] => 1 
           [DistNumber] => 1 
           [10] => 70.0000000000000000000 //here is the difference 1
           [Quantity] => 70.0000000000000000000  //here is the difference 2
           [11] => 600271  //here is the difference 3
           [ItemId] => 600271 //here is the difference 4
           [12] => ASSY7.60-15SL/8 FRM I1 15X6 6-6, BLK (GWT-761508 (24) //here is the difference 5
           [SalesDescription] => ASSY7.60-15SL/8 FRM I1 15X6 6-6, BLK (GWT-761508)(24)//here is the difference 1 //here is the difference 6
           [13] => AS1577 //here is the difference 7
           [PartNumber] => AS1577 //here is the difference 8
           [14] => ASSY7.60-15 8PLY W/WHL15X6 BLK //here is the difference 9
           [ItemDescription] => ASSY7.60-15 8PLY W/WHL15X6 BLK )

//阵列2：

     Array ( 
            [0] => XXX001 
            [CustomerId] => XXX001 
            [1] => XXX Company Name.*
            [Customer_Bill_Name] => XXX Company Name.* 
            [2] => DHE [WhichShipVia] => DHE [3] =>
            [INV_POSOOrderNumber] =>   [4] => 2014-12-19 
            [ShipByDate] => 2014-12-19  [5] => 
            [GoodThruDate] => [6] => 
            [CustomerSONo] => [7] => 15020 
            [Reference] => 15020 [8] => 2014-11-25 
            [TransactionDate] => 2014-11-25 [9] => 2 
            [DistNumber] => 2 
            [10] => 6.0000000000000000000 //here is the difference 1
            [Quantity] => 6.0000000000000000000 //here is the difference 2
            [11] => 600274  //here is the difference 3
            [ItemId] => 600274 //here is the difference 4
            [12] => ASSY9.5L-15SL/8 FLT I1 15X8 6-6, BLK (GWT-951508)(16)      
            [SalesDescription] => ASSY9.5L-15SL/8 FLT I1 15X8 6-6, BLK (GWT-951508)(16) //here is the difference 5
            [13] => AS1601 //here is the difference 6
            [PartNumber] => AS1601 //here is the difference 7
            [14] => ASSY9.5L-15 W/WHL15X8 6/6 BLK //here is the difference 8
            [ItemDescription] => ASSY9.5L-15 W/WHL15X8 6/6 BLK ) //here is the difference 9

---

如果它们来自数据库并共享一个公共字段，那么为什么不首先使用

JOIN

ed查询呢？您能给出一个您期望的输出示例吗？