在php数组中排序唯一值

Question

我最初发布了这个“ 其他问题” ，并扩展了我的问题，然后从中移到了这个问题。

我正在尝试拆分数组，并使用PHP从MYSQL SELECT QUERY删除一些部分唯一的值。

这是我得到的输出...

Array ( [Order_ID] => 1 [Customer_ID] => 42534 [OrderDate] => [lotCode] => 401042 [qty] => 8 [0] => 
Array ( [0] => 1 [Order_ID] => 1 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => 993647 [lotCode] => 993647 [4] => 9 [qty] => 9 ) [1] => 
Array ( [0] => 1 [Order_ID] => 1 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => 401040 [lotCode] => 401040 [4] => 55 [qty] => 55 ) [2] => 
Array ( [0] => 1 [Order_ID] => 1 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => 401040 [lotCode] => 401040 [4] => 66 [qty] => 66 ) [3] => 
Array ( [0] => 1 [Order_ID] => 1 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => 401042 [lotCode] => 401042 [4] => 8 [qty] => 8 ) ) 

Array ( [Order_ID] => 7 [Customer_ID] => 42534 [OrderDate] => [0] => 
Array ( [0] => 2 [Order_ID] => 2 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) [1] => 
Array ( [0] => 3 [Order_ID] => 3 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) [2] => 
Array ( [0] => 4 [Order_ID] => 4 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) [3] => 
Array ( [0] => 5 [Order_ID] => 5 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) [4] => 
Array ( [0] => 6 [Order_ID] => 6 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) [5] => 
Array ( [0] => 7 [Order_ID] => 7 [1] => 42534 [Customer_ID] => 42534 [2] => [OrderDate] => [3] => [lotCode] => [4] => [qty] => ) )

从此查询...

<?php

$withLotCodes = array();
$noLotCodes = array();

$OrdersToShip2 = mysql_query("
        SELECT o.Order_ID, o.Customer_ID, o.OrderDate, olc.lotCode, olc.qty
        FROM Orders o
        LEFT JOIN OrdersLotCodes olc ON o.Order_ID = olc.Order_ID
        WHERE o.LotCoded = 0 ORDER BY o.Order_ID");

if($OrdersToShip2) {

    while ($info = mysql_fetch_array($OrdersToShip2))
    {
            if(!isset($info['lotCode'])){
                // if NO lotCode
                $noLotCodes['Order_ID']     = $info['Order_ID'];
                $noLotCodes['Customer_ID']  = $info['Customer_ID'];
                $noLotCodes['OrderDate']    = $info['OrderDate'];

                array_push($noLotCodes,$info);

                }else{
                // if YES lotCode
                $withLotCodes['Order_ID']    = $info['Order_ID'];
                $withLotCodes['Customer_ID'] = $info['Customer_ID'];
                $withLotCodes['OrderDate']   = $info['OrderDate'];
                $withLotCodes['lotCode']     = $info['lotCode'];
                $withLotCodes['qty']         = $info['qty'];

                array_push($withLotCodes,$info);

                }
    }
            }else{
            echo "encountered an error.".mysql_error();
    } 

print_r($withLotCodes); 
echo '<br><br>';
print_r($noLotCodes);   

mysql_close($conn);
?>

如您所见，它将array拆分成具有'lotCodes'订单和没有'lotCodes'订单，因此我现在有两个arrays 。

现在，我想删除重复值的'Order_ID' 'Customer_ID和'OrderDate'是有'lotCode'率先在值array 。 我只希望它们出现一次，后跟lotCode值尽可能多的值。

我尝试使用array_unique但是删除了其余的与我需要用于输出的lotCodes 。

所以，我要的是这样的：

Order_ID, Customer_ID, OrderDate, lotCode, qty, lotCode, qty, lotCode, qty, lotCode, qty

代替：

Order_ID, Customer_ID, OrderDate, lotCode, qty
Order_ID, Customer_ID, OrderDate, lotCode, qty
Order_ID, Customer_ID, OrderDate, lotCode, qty
Order_ID, Customer_ID, OrderDate, lotCode, qty

我希望这很清楚。

对这个家伙有什么建议吗？

Answer 1

根据您的实际代码，您可以执行以下操作

while ($info = mysql_fetch_array($OrdersToShip2))
{
    if(!isset($info['lotCode'])){
        if( !isset( $noLotCodes[$info['Order_ID']]) ) {
            $noLotCodes[$info['Order_ID']] = $info;
        }
        $noLotCodes[$info['Order_ID']]['lotCode'][$info['lotCode']] = $info['qty'];

    }else{
        if( !isset( $withLotCodes[$info['Order_ID']]) ) {
            $withLotCodes[$info['Order_ID']] = $info;
        }
        $withLotCodes[$info['Order_ID']]['lotCode'][$info['lotCode']] = $info['qty'];

    }
}

这将为您提供一个多维数组，该数组具有位于顶层的订单“标头”信息（order_id，customer_id和order_date等），然后是lotCodes和qty的子数组。

但是，更笼统地说，您应该远离使用mysql_系列函数-不推荐使用它们。 您应该使用mysqli_甚至更好的PDO。

Answer 2

为什么不通过创建一个数组来简化事情（从我的角度来看）

// you create your order array
$orders = array();
// Then for each lot and quantity
$order[$Order_ID][$Customer_ID][$OrderDate][] = array( 'lotCode'=>$lotcode, 'qty'=>$qty );
$order[$Order_ID][$Customer_ID][$OrderDate][] = array( 'lotCode'=>$lotcode2, 'qty'=>$qty2 );

// You can test if a specified value exist with isset
// Like
if ( isset (  $order[1][42534 ][3] ) )
{
   // Found order list with order ID 1, cutomer id 42534 and order date 3
}

编辑：

// Select emulation
$mysqlreturnarrayemul = array();
$mysqlreturnarrayemul[0]['Order_ID'] = 1;
$mysqlreturnarrayemul[0]['Customer_ID'] = 42534;
$mysqlreturnarrayemul[0]['OrderDate'] = 3;
$mysqlreturnarrayemul[0]['lotCode'] = 1;
$mysqlreturnarrayemul[0]['qty'] = 200;

$mysqlreturnarrayemul[1]['Order_ID'] = 1;
$mysqlreturnarrayemul[1]['Customer_ID'] = 42534;
$mysqlreturnarrayemul[1]['OrderDate'] = 3;
$mysqlreturnarrayemul[1]['lotCode'] = 5;
$mysqlreturnarrayemul[1]['qty'] = 8456;

// you create your order array
$orders = array();
foreach ( $mysqlreturnarrayemul as $info )
{
    // Then you add lot code and quantity
    $order[$info['Order_ID']][$info['Customer_ID']][$info['OrderDate']][] = $info['lotCode'];
    $order[$info['Order_ID']][$info['Customer_ID']][$info['OrderDate']][] = $info['qty'];
}

// You can test if a specified value exist with isset
// Like
if ( isset (  $order[1][42534 ][3] ) )
{
   // Found order list with order ID 1, cutomer id 42534 and order date 3
   print_r($order[1][42534 ][3]);

}
// print_r: Array ( [0] => 1 [1] => 200 [2] => 5 [3] => 8456 ) 

问候