Explode each values of Array element

Question

I have an array like :

Array
(
   [2] => 2,6
   [3] => 1
   [4] => 14
   [5] => 10
   [6] => 8
)

I want to explode each element of an array and return a new array using array_map, so that I can avoid using loop, and creating extra function to call back.

O/p should be like :

  Array
(
[2] => Array
    (
        [0] => 2
        [1] => 6
    )

[3] => Array
    (
        [0] => 1
    )

[4] => Array
    (
        [0] => 14
    )

[5] => Array
    (
        [0] => 10
    )

[6] => Array
    (
        [0] => 8
    )

)

So where are you stuck with using array_map()? Also you know that at the end array_map will also loop over your array. — Rizier123
– Rizier123, Commented Aug 29, 2016 at 10:17
avoid using loop, and creating extra function to call back - array_map also uses callback function as its first argument — RomanPerekhrest
– RomanPerekhrest, Commented Aug 29, 2016 at 10:19
avoid using loop, and creating extra function to call back - Means , as we have function explode already , so not to create other function — Alok Jha
– Alok Jha, Commented Aug 29, 2016 at 10:48
Related: Split Values in Array Using Explode to form Multidimensional Array and Make an element in array explode — mickmackusa
– mickmackusa ♦, Commented Jul 14, 2024 at 0:10

Philipp Palmtag · Accepted Answer · 2016-08-29 10:32:58Z

8

You can use

$result = array_map(function($val) {
    return explode(',', $val);
}, $input);

Which will result in

Array
(
    [2] => Array
        (
            [0] => 2
            [1] => 6
        )

    [3] => Array
        (
            [0] => 1
        )

    [4] => Array
        (
            [0] => 14
        )

    [5] => Array
        (
            [0] => 10
        )

    [6] => Array
        (
            [0] => 8
        )

)

This will work on PHP >= 5.3 with support for anonymous functions.

edited Aug 29, 2016 at 10:32

answered Aug 29, 2016 at 10:24

Philipp Palmtag

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Comments

Arul Kumaran · Accepted Answer · 2019-09-17 07:34:10Z

4

You can also do

$result = array_map('str_getcsv', $input);

This will also result in

Array
(
    [2] => Array
        (
            [0] => 2
            [1] => 6
        )

    [3] => Array
        (
            [0] => 1
        )

    [4] => Array
        (
            [0] => 14
        )

    [5] => Array
        (
            [0] => 10
        )

    [6] => Array
        (
            [0] => 8
        )

)

answered Sep 17, 2019 at 7:34

Arul Kumaran

9917 silver badges23 bronze badges

Comments

Mohit Tanwani · Accepted Answer · 2016-08-29 10:24:36Z

2

Try following code

$newArr = array_map(function($val, $key){
    return explode(",", $val);
}, $arr);

answered Aug 29, 2016 at 10:24

Mohit Tanwani

6,6382 gold badges16 silver badges33 bronze badges

Comments

Philipp Palmtag · Accepted Answer · 2016-08-29 11:38:42Z

0

$data = array(2 => '2,6',3 => '1',4 => '14',5 => '10',6 => '8');

foreach($data as $key => $val) {
    $new = explode(',',$val);
    $data[$key] = $new;
}
$output = $data;

echo '<pre>';
print_r($output);

edited Aug 29, 2016 at 11:38

Philipp Palmtag

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answered Aug 29, 2016 at 10:27

Dilip Kale

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2 Comments

Alok Jha Over a year ago

I dont want any extra loops, as we have array_map

Blue Over a year ago

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