doubinduo3364 2017-01-01 19:23
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如何重新排序多维数组? [重复]

This question already has an answer here:

Let's suppose I have the following array:

Array
(
    [0] => Array
        (
            [0] => 1200
            [1] => 2541
            [2] => 2540
            [3] => 2539
        )
    [1] => Array
        (
            [0] => Television
            [1] => Monitor
            [2] => Car
            [3] => Bike
        )
    [2] => Array
        (
            [0] => Electrodomestic
            [1] => Computer Stuff
            [2] => Vehicle
            [3] => Vehicle
        )
)

And I would like to arrange it individually, like this:

Array
(
    [0] => Array
        (
            [0] => 1200
            [1] => Television
            [2] => Electrodomestic
        )
    [1] => Array
        (
            [0] => 2541
            [1] => Monitor
            [2] => Computer Stuff
        )
    [2] => Array
        (
            [0] => 2540
            [1] => Car
            [2] => Vehicle
        )
    [3] => Array
        (
            [0] => 2539
            [1] => Bike
            [2] => Vehicle
        )
)

How can I do that?

I would like to reoder my simple array (from data I extracted from a REGEX) into an array containing my individual "objects".

</div>
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1条回答 默认 最新

  • dongqing220586 2017-01-01 19:31
    关注

    Have nothing to do, so here's a possible solution:

    $a = Array
    (
        '0' => Array
            (
                '0' => 1200,
                '1' => 2541,
                '2' => 2540,
                '3' => 2539,
            ),
        '1' => Array
            (
                '0' => 'Television',
                '1' => 'Monitor',
                '2' => 'Car',
                '3' => 'Bike',
            ),
        '2' => Array
            (
                '0' => 'Electrodomestic',
                '1' => 'Computer Stuff',
                '2' => 'Vehicle',
                '3' => 'Vehicle',
            )
    );
    
    // take a size of every subarray
    $t = sizeof($a[0]);
    // do a loop
    $new_a = [];
    for($i =0; $i < $t; $i ++) {
        // `array_column` extracts every value 
        // with key `$i` from each element of 
        // `$a` array and adds these values
        // to a new array
        $new_a[] = array_column($a, $i);
    }
    
    echo'<pre>',print_r($new_a),'</pre>';
    

    Warning: array_column introduced in php5.5.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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