PHP: Count same values in multidimensional array

Question

I want to count the same values at the deepest/last level of a multidimensional array:

Array
(
[svote001] => Array
    (
        [0] => 006
        [1] => 006
        [2] => 007
    )

[svote002] => Array
    (
        [0] => 000
        [1] => 000
        [2] => 000
    )

[svote003] => Array
    (
        [0] => 002
        [1] => 003
        [2] => 001
    )
)

converted to

Array
(
[svote001] => Array
    (
        [006] => 2
        [007] => 1
    )

[svote002] => Array
    (
        [000] => 3
    )

[svote003] => Array
    (
        [001] => 1
        [002] => 1
        [003] => 1
    )
)

The counted values should additionally be sorted from high to low numbers.

Yes, the array is always 2-dimensional and all "inner" arrays have the same amount of values: all 3 values or 4 or 5... — Felix Bernhard
– Felix Bernhard, Commented Feb 12, 2014 at 21:38

AbraCadaver · Accepted Answer · 2017-04-05 19:49:01Z

6

foreach($array as $k => $v) {
    $result[$k] = array_count_values($v);
    arsort($result[$k]);
}

Loop through the array (exposing the key) to access each inner array
Count the values of the inner array (value will be key and count will be value)
Sort by the values (count) preserving the keys

edited Apr 5, 2017 at 19:49

answered Feb 12, 2014 at 21:39

AbraCadaver

79.2k7 gold badges75 silver badges91 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Flixer · Accepted Answer · 2014-02-12 21:39:31Z

2

This should fit your needs:

<?php

$a = array(
    'svote001' => array("006", "006", "007"),
    'svote002' => array("000", "000", "000"),
    'svote003' => array("003", "001", "001"),
);
$resultArray = array();

foreach ($a as $arrayName => $arrayData){
    $resultArray[$arrayName] = array();
    foreach ($arrayData as $value){
        if (empty($resultArray[$arrayName][$value])){
            $resultArray[$arrayName][$value] = 1;
        }else{
            $resultArray[$arrayName][$value]++;
        }
    }
    arsort($resultArray[$arrayName]);
}

var_dump($resultArray);

Edit: AbraCadaver solution is much better, use this one. I will let the answer stay here anyway.

answered Feb 12, 2014 at 21:39

Flixer

9581 gold badge7 silver badges21 bronze badges

Collectives™ on Stack Overflow

PHP: Count same values in multidimensional array

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related