如何重构多维数组？ [关闭]

Question

I'm having problem with my array basicly this is what i have:

$test = 
array(
  "image" => array(
        "name" => array(
            "name.jpg",
            "name2.jpg",
            "name3.jpg"
        ),
        "type"  => array(
                "image/jpeg",
                "image/jpeg",
                "image/jpeg",
        ),
        "size" => array(
          118108,
          589788,
          1387074
        )
    )
)

And this is what i would like to have:

$test2 =
array(
    "0" => array(
        "name" => "name.jpg",
        "type" => "image/jpeg",
        "size" => 118108
    ),
    "1" => array(
        "name" => "name2.jpg",
        "type" => "image/jpeg",
        "size" => 589788
    ),
    "2" => array(
        "name" => "name3.jpg",
        "type" => "image/jpeg",
        "size" => 1387074
    )

)

So i need some kind of script which would redo that first array structure in to the second one

Answer 1

Here's a more generic solution. It will rebuild an array with any property names. I also wrapped it in a function to make it easier to use.

Using:

function func(array $input)
{
    $result = array();

    foreach ($input as $type => $properties) {
        foreach ($properties as $name => $values) {
            for ($i = 0; $i < count($values); $i++) {
                $result[$i][$name] = $values[$i];
            }
        }
    }

    return $result;
}

Results in:

Array
(
    [0] => Array
        (
            [name] => name.jpg
            [type] => image/jpeg
            [size] => 118108
        )

    [1] => Array
        (
            [name] => name2.jpg
            [type] => image/jpeg
            [size] => 589788
        )

    [2] => Array
        (
            [name] => name3.jpg
            [type] => image/jpeg
            [size] => 1387074
        )

)

Hope it helps!