CODEWITHSUNDEEP
phparrays
mamdouh alramadan
mamdouh alramadan

Reputation: 8528

Group array elements into pairs

I have this array:

Array // called $data in my code
(
    [0] => Array
        (
            [name] => quantity
            [value] => 0
        )

    [1] => Array
        (
            [name] => var_id
            [value] => 4
        )

    [2] => Array
        (
            [name] => quantity
            [value] => 0
        )

    [3] => Array
        (
            [name] => var_id
            [value] => 5
        )

)

which I need it to be like:

Array // called $temp in my code
(
    [0] => Array
        (
            [0] => Array
                (
                    [name] => quantity
                    [value] => 0
                )

            [1] => Array
                (
                    [name] => var_id
                    [value] => 4
                )

        )

    [2] => Array
        (
            [0] => Array
                (
                    [name] => quantity
                    [value] => 0
                )

            [1] => Array
                (
                    [name] => var_id
                    [value] => 5
                )

        )

)

and I did it using this code I made:

    $data = $_POST['data'];
    $temp = array();
    foreach($data as $key => $datum)
    {
        if($key%2 == 0)
        {
            $temp[$key] = array();
            array_push($temp[$key], $datum, $data[$key+1]);
        }
    }

But I think that my code is some kinda stupid, specially if I have a huge data. eventually what I want to do is just have each two indexes combined in one array, and I know that there should be something better than my code to do it, any suggestions?

Upvotes: 1

Views: 103

Answers (3)

Anthony Sterling
Anthony Sterling

Reputation: 2441

Take a look at array_chunk.

<?php
$array = array(
    array(1),
    array(2),
    array(3),
    array(4),
);

print_r(
    array_chunk($array, 2, false)
);

/*
    Array
    (
        [0] => Array
        (
            [0] => Array
            (
                [0] => 1
            )
            [1] => Array
            (
                [0] => 2
            )
        )
        [1] => Array
        (
            [0] => Array
            (
                [0] => 3
            )
            [1] => Array
            (
                [0] => 4
            )
        )
    )
*/

Upvotes: 1

Jeroen
Jeroen

Reputation: 1002

$cnt = count($data);
$temp = array();
for ($i = 0; $i < $cnt; $i = $i + 2)
{
    $temp[] = array($data[$i], $data[$i+1]);
}

Upvotes: 2

Alma Do
Alma Do

Reputation: 37365

Discover array_chunk()

$temp = array_chunk($data, 2);

Upvotes: 6

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