Question

在我的PHP应用程序中，从DB获取结果。处理完结果后，我需要使用foreach

转换结果如下

Array
(

[1] => Array -----> This is intent 1, this key indicates all intent values which is equal to 1, should belongs to here.

    (
        [0] => Array
            (
                [name] => A
                [indent] => 1 
            )

       [1] => Array
            (
                [name] => B
                [indent] => 1 
            )

    )

[2] => Array
    (
        [0] => Array
            (
                [name] => B
                [indent] => 2 
            )

        [1] => Array
            (
                [name] => A
                [indent] => 2 
            )

    )

[3] => Array
    (
        [0] => Array
            (
                [name] => A
                [indent] => 3 

            )

    )
)

我有一些常见的意图值，常见的意图值存储在数组中，如数组（'1'=＆gt;数组（数组[0]，数组[1]））; 。< / p>

我尝试的是

foreach($results as $data){
        $root_array[$data['intent']] = array($data);
}

这将替换旧数组并插入常用的最后一个意图值。

我得到如下结果，意图1和意图2被最后数据替换

Array
(

[1] => Array 

(


   [0] => Array
        (
            [name] => B
            [indent] => 1 
        )

)

[2] => Array
(

    [0] => Array
        (
            [name] => A
            [indent] => 2 
        )

)

[3] => Array
(
    [0] => Array
        (
            [name] => A
            [indent] => 3 

        )

)
)

Answer 1

在循环中，您必须检查当前缩进是否已初始化。如果没有，则创建它，否则只需将新数据附加到它。

foreach($results as $data) {
    if (!isset($root_array[$data['indent']])) {
        $root_array[$data['indent']] = array($data);
    } else {
        $root_array[$data['indent']][] = $data;
    }
}

在多维数组

1 个答案: