Sorting array according to the values in PHP

Question

I have the following array

[0] => Array
    (
        [id] => 229
        [val] => 2
    )

[3] => Array
    (
        [id] => 237
        [val] => 1
    )

[4] => Array
    (
        [id] => 238
        [val] => 6
    )

I need to sort this array according to the val values in the array, and do not know how to accomplish this?

possible duplicate of [PHP sort multidimensional array by value](http://stackoverflow.com/questions/2699086/php-sort-multidimensional-array-by-value) — jtbandes, Apr 12 '12 at 11:33

score 8 · Accepted Answer · answered Jan 19 '10 at 13:56

8

function cmp($a, $b)
{
    if ($a["val"] == $b["val"]) {
        return 0;
    }
    return ($a["val"] < $b["val"]) ? -1 : 1;
}

usort($yourarray, "cmp");

Read this for more information.

answered Jan 19 '10 at 13:56

kjagiello

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8

I would do: uasort($yourarray, 'cmp'); to maintain keyvalue-pair (index association). – Pindatjuh Jan 19 '10 at 13:58

score 2 · Answer 2 · edited Nov 13 '11 at 14:29

2

array_multisort can help with this, example 3 presents a similar problem and solution.

edited Nov 13 '11 at 14:29

Josh

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answered Jan 19 '10 at 14:01

akamike

2,148
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score 0 · Answer 3 · answered Jan 19 '10 at 13:55

0

This would help - http://www.informit.com/articles/article.aspx?p=341245&seqNum=7

answered Jan 19 '10 at 13:55

Darmen Amanbay

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score 0 · Answer 4 · answered Jan 19 '10 at 14:00

0

You can use array_multisort()

Examples here: http://www.php.net/manual/en/function.array-multisort.php

The Example #3 Sorting database results is what you want. Might be easier if you are not familiar with callback functions and usort().

answered Jan 19 '10 at 14:00

Petr Peller

8,581
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score -1 · Answer 5 · edited Jul 26 '18 at 07:27

use this function to sort array accroding to your need

function sksort(&$array, $subkey="id",$sort_ascending=false)
{
    if (count($array))
        $temp_array[key($array)] = array_shift($array);

    foreach($array as $key => $val){
        $offset = 0;
        $found = false;
        foreach($temp_array as $tmp_key => $tmp_val)
        {
            if(!$found and strtolower($val[$subkey]) > strtolower($tmp_val[$subkey]))
            {
                $temp_array = array_merge(
                    (array)array_slice($temp_array,0,$offset),
                    array($key => $val),
                    array_slice($temp_array,$offset)
                );
                $found = true;
            }
            $offset++;
        }
        if(!$found) $temp_array = array_merge($temp_array, array($key => $val));
    }

    if ($sort_ascending) $array = array_reverse($temp_array);

    else $array = $temp_array;
}

========================================================================== now use this function in ur array

sksort($arrayname, "val"); /* for ascending */

sksort($arrayname, "val", true); /* for descending */

Sorting array according to the values in PHP

5 Answers5

use this function to sort array accroding to your need