Question

从MySQL连接查询中，我得到如下结果：

Array ( [0] => c1 [1] => ot1 [2] => ot1 [3] => R )
Array ( [0] => 20 [1] => 10 [2] => 15 [3] => 5 )

但是我想要这样的结果：

c1 = [20]
ot1 = [10,15]
R = [5]

请帮助我。

Answer 1

假设

$array1 = array( 0 => 'c1', 1 => 'ot1', 2 => 'ot1' 3 => 'R' )
$array2 = array( 0 => 20, 1 => 10, 2 => 15, 3 => 5 )

尝试一下：

 for($i = 0; $i < count($array1); $i++){

        if(!isset(${$array1[$i]}))
            ${$array1[$i]} = [];
        ${$array1[$i]}[] = $array2[$i];

    }

请注意，仅当键是从0开始的连续整数并且两个数组的维数相同时，此方法才有效

Answer 2

假设第一个数组称为$array1，另一个数组称为$array2，请尝试以下操作：

$merged = []; //new array for merged values
foreach ($array1 as $key => $value) { //iterate over the array which holds keys
    if (!isset($merged[$value])) { //if a key does not exist in new array yet
        $merged[$value] = []; //add it
    }
    $merged[$value][] = $array2[$key]; //add new value from the other array under this key
}

只要保留数组的完整性，就不会像其他答案中那样对连续键有任何限制

Answer 3

使用这个

UserControl1.ButtonClicked += (s, e) =>
{
    //show usercontrol2 on your panel.
}

如何在mysql查询中合并两个数组

3 个答案: