clear php empty array

Question

i have the following array and want to get rid/remove the empty array and rearrange it in an order.can anyone help me please.


Array
(

    [ufile] => Array
        (

            [name] => Array
                (
                    [0] => chicken soup.jpg
                    [1] => 
                    [2] => hot n sour sup.jpg
                    [3] => 
                    [4] => 
                    [5] => 
                    [6] => 
                    [7] => 
                    [8] => 
                )

            [type] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => 
                    [3] => 
                    [4] => 
                    [5] => 
                    [6] => 
                    [7] => 
                    [8] => 
                )

            [tmp_name] => Array
                (
                    [0] => 
                    [1] => 
                    [2] => 
                    [3] => 
                    [4] => 
                    [5] => 
                    [6] => 
                    [7] => 
                    [8] => 
                )

            [error] => Array
                (
                    [0] => 1
                    [1] => 4
                    [2] => 1
                    [3] => 4
                    [4] => 4
                    [5] => 4
                    [6] => 4
                    [7] => 4
                    [8] => 4
                )

            [size] => Array
                (
                    [0] => 0
                    [1] => 0
                    [2] => 0
                    [3] => 0
                    [4] => 0
                    [5] => 0
                    [6] => 0
                    [7] => 0
                    [8] => 0
                )

        )

)

rearrange the key order example rearrange key to become 0 and 1 for the example above which was 0 and 2 before that — redcoder
– redcoder, Commented May 21, 2010 at 23:18

mr.b · Accepted Answer · 2010-05-21 23:20:33Z

4

I believe this will cleanup your array: remove empty elements (those that evaluate to empty, eg "" and 0 equally), remove duplicate elements, and sort it.

$cleaned = array_map('array_filter', $array_to_be_cleaned);
$cleaned = array_map('array_unique', $cleaned);
$cleaned = array_map('sort', $cleaned);

answered May 21, 2010 at 23:20

mr.b

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mr.b Over a year ago

Also, it is obvious (to me) that you have intention to clean up $_FILES array from multiple file upload form with <input type="file" name="ufile[]" ... />. Better approach would be to loop through it and check each upload manually: for ($i = 0; $i < count($_FILES['ufile']['name']); $i ++ ) { $error = $_FILES['ufile']['error'][$i]; ... }, check error code and act accordingly.

Dominic Barnes · Accepted Answer · 2010-05-22 10:29:08Z

4

To filter out the empty elements of the array, check out array_filter. To sort the elements, check out sort (or refer to this list of sorting functions to see what meets your needs)

$newarray = array_filter($myarray);
sort($newarray);

This will take the array you pass it (ie. $myarray) and it will strip out any empty values, then it will store the results to $newarray. After that, sort will organize the remaining values from least to greatest.

edited May 22, 2010 at 10:29

answered May 21, 2010 at 23:20

Dominic Barnes

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1 Comment

Dominic Barnes Over a year ago

@Gumbo Good call, I don't know how I missed that! :S

Community · Accepted Answer · 2023-11-20 22:45:59Z

0

unset( $var['ufile']['type'] );
unset( $var['ufile']['tmp_name'] );

To sort, use sort(), usort(), or any other you want. Here's a good comparison of the different sort methods.

edited Nov 20, 2023 at 22:45

CommunityBot

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answered May 21, 2010 at 23:19

Seb

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Comments

Simon · Accepted Answer · 2010-05-21 23:24:44Z

0

Try array_filter($array). It will remove all NULL elements and return the cleared array.

edited May 21, 2010 at 23:24

answered May 21, 2010 at 23:18

Simon

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