dpir3950 2013-05-07 06:35
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如何在PHP中的关联数组中插入新的键值对? [关闭]

I've an associative array named $classes_data as follows:

Array
(
    [2] => Array
        (
            [class_id] => 2
            [class_name] => II
            [subjects] => Array
                (
                    [0] => 11 Engllish
                )

        )

    [3] => Array
        (
            [class_id] => 3
            [class_name] => III
            [subjects] => Array
                (
                    [0] => Hidi
                    [1] => 11 Maths
                    [2] => 11 Science
                    [3] => 11 Engllish
                )

        )

    [4] => Array
        (
            [class_id] => 4
            [class_name] => IV
            [subjects] => Array
                (
                    [0] => Physics
                )

        )

    [6] => Array
        (
            [class_id] => 6
            [class_name] => VI
            [subjects] => Array
                (
                    [0] => Mathematics
                    [1] => dfadadadsagfasrsarasrarBiology
                )

        )

    [7] => Array
        (
            [class_id] => 7
            [class_name] => VII
            [subjects] => Array
                (
                    [0] => Physics
                    [1] => Chemistry11
                    [2] => 11 Science
                )

        )

    [8] => Array
        (
            [class_id] => 8
            [class_name] => VIII
            [subjects] => Array
                (
                    [0] => Hidi
                    [1] => 11 Engllish
                )

        )

    [9] => Array
        (
            [class_id] => 9
            [class_name] => IX
            [subjects] => Array
                (
                    [0] => Mathematics
                    [1] => Hidi
                    [2] => 11 Science
                )

        )

)

The keys of array (viz. 2,3,4,6,7,8,9) are in this manner instead of 0,1,2,3,4,5,6 because I've used one function to rearrange these keys.

Now what I want to do is insert a new key class_checked and set its initial value as 0 (i.e.class_checked =>"0").

I tried lot of tricks but couldn't get the desired array format. Can any one help me in this to get the desired array? Thanks in advance.

For your information the required array format for array $classes_data will be as follows:

 Array
    (
    [2] => Array
        (
            [class_id] => 2
            [class_name] => II
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => 11 Engllish
                )

        )

    [3] => Array
        (
            [class_id] => 3
            [class_name] => III
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Hidi
                    [1] => 11 Maths
                    [2] => 11 Science
                    [3] => 11 Engllish
                )

        )

    [4] => Array
        (
            [class_id] => 4
            [class_name] => IV
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Physics
                )

        )

    [6] => Array
        (
            [class_id] => 6
            [class_name] => VI
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Mathematics
                    [1] => dfadadadsagfasrsarasrarBiology
                )

        )

    [7] => Array
        (
            [class_id] => 7
            [class_name] => VII
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Physics
                    [1] => Chemistry11
                    [2] => 11 Science
                )

        )

    [8] => Array
        (
            [class_id] => 8
            [class_name] => VIII
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Hidi
                    [1] => 11 Engllish
                )

        )

    [9] => Array
        (
            [class_id] => 9
            [class_name] => IX
            [class_checked] => 0
            [subjects] => Array
                (
                    [0] => Mathematics
                    [1] => Hidi
                    [2] => 11 Science
                )

        )

)
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3条回答 默认 最新

  • doukang7486 2013-05-07 06:44
    关注

    Try:

    foreach($classes_data as $key=>$value) {
        $classes_data[$key]['class_checked'] = 0;
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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