在php中删除数组中的重复项

我的阵列：

Array ( 
[0] => Array ( [month] => November [Average Purchase Price] => 2.52 [Total Purchase Gallons] => 84000 ) 
[1] => Array ( [month] => October [Average Purchase Price] => 2.615 [Total Purchase Gallons] => 63000 ) 
[2] => Array ( [month] => November [Average Customer Price] => 2.79 [Total Customer Gallons] => 25000 ) 
[3] => Array ( [month] => October [Average Customer Price] => 2.9050000000000002 [Total Customer Gallons] => 5500 ) )

我希望能够回显[month]，而不是复制它，但仍然将其他值与正确的月份关联。为了达到这一点，我做了一个数组合并，把它们放在一起，就像你们看到的一样

它们分别如下所示：

#一,

#二,

我尝试了array_unique，但没有效果。我使用foreach语句来呼应这些值

谢谢大家!

SQL查询：

$sql = "SELECT month, AVG(price) AS 'Average Purchase Price', SUM(gallons) as 'Total Purchase Gallons' from purchase_contracts
group BY month";
$purch = mysqli_query($con, $sql) or die(mysqli_error($con));
while ($rows = mysqli_fetch_assoc($purch))
{ 
    $purch_items[] = $rows;
}


$sql1 = "SELECT month, AVG(price) AS 'Average Customer Price', SUM(gallons) as 'Total Customer Gallons' from customer_contracts
 group BY month";
 $cust = mysqli_query($con, $sql1) or die(mysqli_error($con));
 while ($rows1 = mysqli_fetch_assoc($cust))
 { 
   $cust_items[] = $rows1;
 }

这很简单：

这是一个简单的迭代：

从原来的两个数组中，只需在
月重新编制索引，然后递归合并它们：

Array
(
    [November] => Array
        (
            [month] => Array
                (
                    [0] => November
                    [1] => November
                )
            [Average Purchase Price] => 2.52
            [Total Purchase Gallons] => 84000
            [Average Customer Price] => 2.79
            [Total Customer Gallons] => 25000
        )
    [October] => Array
        (
            [month] => Array
                (
                    [0] => October
                    [1] => October
                )
            [Average Purchase Price] => 2.615
            [Total Purchase Gallons] => 63000
            [Average Customer Price] => 2.905
            [Total Customer Gallons] => 5500
        )
)

这将产生：

echo $result['October']['Average Purchase Price'];
echo $result['October']['Average Customer Price'];
// etc...

从一个月开始轻松访问任何密钥：

foreach($result as $month => $values) {
    echo $month;
    echo $values['Average Purchase Price'];
    echo $values['Average Customer Price'];
    // etc...
}

或循环：

SELECT month, AVG(price) AS 'Average Purchase Price', SUM(gallons) AS 'Total Purchase Gallons'
    FROM purchase_contracts GROUP BY month

UNION ALL

SELECT month, AVG(price) AS 'Average Customer Price', SUM(gallons) AS 'Total Customer Gallons'
    FROM customer_contracts GROUP BY month

但是，您在两个可以组合的查询中进行了编辑。这可能有用，也可能会问另一个问题，毫无疑问，有人会问你一个问题：

从最初的两个数组中，只需在
month
上重新编制索引并递归合并它们：

Array
(
    [November] => Array
        (
            [month] => Array
                (
                    [0] => November
                    [1] => November
                )
            [Average Purchase Price] => 2.52
            [Total Purchase Gallons] => 84000
            [Average Customer Price] => 2.79
            [Total Customer Gallons] => 25000
        )
    [October] => Array
        (
            [month] => Array
                (
                    [0] => October
                    [1] => October
                )
            [Average Purchase Price] => 2.615
            [Total Purchase Gallons] => 63000
            [Average Customer Price] => 2.905
            [Total Customer Gallons] => 5500
        )
)

这将产生：

echo $result['October']['Average Purchase Price'];
echo $result['October']['Average Customer Price'];
// etc...

从一个月开始轻松访问任何密钥：

foreach($result as $month => $values) {
    echo $month;
    echo $values['Average Purchase Price'];
    echo $values['Average Customer Price'];
    // etc...
}

或循环：

SELECT month, AVG(price) AS 'Average Purchase Price', SUM(gallons) AS 'Total Purchase Gallons'
    FROM purchase_contracts GROUP BY month

UNION ALL

SELECT month, AVG(price) AS 'Average Customer Price', SUM(gallons) AS 'Total Customer Gallons'
    FROM customer_contracts GROUP BY month

但是，您在两个可以组合的查询中进行了编辑。这可能有用，也可能会问另一个问题，毫无疑问，有人会问你一个问题：

使用
foreach
在月份名称为键时创建新数组。您是如何使用array\u unique的？这应该行。@不要惊慌--$combined=array\u merge（$array1，$array2）$combined1=数组_唯一（$combined）；打印（合并1美元）；结果：数组（[0]=>数组（[month]=>11月[平均采购价格]=>2.52[总采购加仑]=>84000））@biesior你能给我举个例子吗？我已经在使用一个foreach--foreach（$composed as$purchase）{#biesior我从两个SQL语句中得到了这个结果，并试图将它们组合在一起。当月份名称是一个键时，使用
foreach
创建新数组。您是如何使用array_unique的？这应该可以工作。@不要惊慌--$composed=array_merge（$array1，$array2）$combined1=array_unique（$combined）；print_r（$combined1）；Results:array（[0]=>array（[month]=>11月[Average Purchase Price]=>2.52[Total Purchase Gallons]=>84000））@biesior你能给我举个例子吗？我已经在使用foreach--foreach（$combined as Purchase）{#biesior我从两条SQL语句中得到了这个结果，并试图将它们组合在一起。非常感谢，这很好。我发布了SQL，但这确实有效。非常感谢。这在一个查询中肯定是可行的。我发布了一个未经测试的示例。非常感谢，这很好。我发布了SQL，但这确实有效。Greatl我很感激。这在一个查询中肯定是可行的。我发布了一个未经测试的示例。