Dynamic Mutidimensional array value Count using php

Question

I am trying to count the array value in the multidimensional array for the following Array value.

$allMultiGridRes = Array
(
    [0] => Array
        (
            [1] => Array
                (
                    [1] => grid multi col1
                    [2] => grid multi col2
                )
            [2] => Array
                (
                    [1] => grid multi col1
                )
        )
    [1] => Array
        (
            [1] => Array
                (
                    [1] => grid multi col1
                    [2] => grid multi col2
                )
            [2] => Array
                (
                    [1] => grid multi col1
                    [2] => grid multi col2
                )
        )
    [2] => Array
        (
            [1] => Array
                (
                    [1] => grid multi col1
                    [2] => grid multi col2
                )
            [2] => Array
                (
                    [1] => grid multi col1
                    [2] => grid multi col2
                )
        )
)

I am expecting the following output.

Array
(
    [1] => Array
        (
            [grid multi col1] => 3
            [grid multi col2] => 3
        )
    [2] => Array
        (
            [grid multi col1] => 3
            [grid multi col2] => 2
        )
)

I have tried the following method using the for loop but I cannot able to achieve the above output like above.

$allMultiGridRes =array();
$paramCheck =array();
foreach ($allMultiGridRes as $gMKey => $GMvalue){
    if(!empty($GMvalue)){
        foreach ($GMvalue as $gMKey2 => $gMValue2){
            if(!empty($gMValue2)){
                $allGridCount[$gMKey2] = array_count_values($gMValue2);
                foreach ($gMValue2 as $gMKey3 => $gMValue3){
                    $paramCheck = !empty($allGridCount[$gMKey2])?$allGridCount[$gMKey2]:array();
                    $GMindex1 = $gMValue3;
                    $allGridCount[$gMKey2][$GMindex1] = array_key_exists($GMindex1,$paramCheck) ? $allGridCount[$gMKey2][$GMindex1]++ : 1;
                    }
                }
            }
        }
    }
}

Using this method I am getting the following output but value are not counting as expected.

Array
(
    [1] => Array
        (
            [grid multi col1] => 1
            [grid multi col2] => 1
        )
    [2] => Array
        (
            [grid multi col1] => 1
            [grid multi col2] => 1
        )
)

I am open to suggestions also I have tried a lot of methods but still I cannot achieve it. I am stuck here for long time

Thanks in advance.

Not sure how you count them. And why should not [0] be counted? In [1] i count 2 col1 and 2 col1, you say there is three of each? — Andreas
– Andreas, Commented May 16, 2018 at 10:02
php code for $allMultiGridRes , it help to run at our side — Niklesh Raut
– Niklesh Raut, Commented May 16, 2018 at 10:05
@Prashanth : Bhai I was talking about this array formed in php that Alive to Die given here : eval.in/1004977 — Niklesh Raut
– Niklesh Raut, Commented May 16, 2018 at 10:25

Eddie · Accepted Answer · 2018-05-16 10:24:01Z

3

You can use array_reduce and foreach

$allMultiGridRes = ;//Your array

$result = array_reduce($allMultiGridRes, function($c, $v){
    foreach ( $v as $key => $value ) {
        if ( !isset( $c[$key] ) ) $c[$key] = array();

        foreach( $value as $o ) {
            if ( !isset( $c[$key][$o] ) ) $c[$key][$o] = 0;
            $c[$key][$o]++;
        }
    }
    return $c;
},array());

print_r( $result );

This will result to:

Array
(
    [1] => Array
        (
            [grid multi col1] => 3
            [grid multi col2] => 3
        )

    [2] => Array
        (
            [grid multi col1] => 3
            [grid multi col2] => 2
        )

)

edited May 16, 2018 at 10:24

answered May 16, 2018 at 10:10

Eddie

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5 Comments

Prashanth Over a year ago

Great Yes it works @eddie but the key index count should start with [1] ,[2].

Eddie Over a year ago

@Prashanth Yes, That will follow the key on your array.

Eddie Over a year ago

I used 0 and 1 on mine, so that is why you are getting that

Prashanth Over a year ago

Hi @Eddie How can I get the same kind output for the inputs give on the following link. Demo

Prashanth Over a year ago

Let us continue this discussion in chat.

Death-is-the-real-truth · Accepted Answer · 2018-05-16 12:47:30Z

You need to use second foreach() iteration key to distinguishing records as well as for proper addition

$allGridCount = [];
foreach ($allMultigridRes as $gMKey => $GMvalue){
    if(!empty($GMvalue)){
        foreach ($GMvalue as $gMKey2 => $gMValue2){
            if(!empty($gMValue2)){
                foreach ($gMValue2 as $gMKey3 => $gMValue3){
                    $allGridCount[$gMKey2][$gMKey3][$gMValue3] = (isset($allGridCount[$gMKey2][$gMKey3][$gMValue3])) ? $allGridCount[$gMKey2][$gMKey3][$gMValue3]+1 : 1;
                }
            }
        }
    }
}
echo "<pre/>";print_r($allGridCount);

Output:-https://eval.in/1004977

Note:- Instead of !empty() use is_array() && count() to check that it's an array and have some value in it to iterate furhter

$allGridCount = [];
foreach ($allMultigridRes as $GMvalue){
    if(is_array($GMvalue) && count($GMvalue) >0){
        foreach ($GMvalue as $gMKey2 => $gMValue2){
            if(is_array($gMValue2) && count($gMValue2) >0){
                foreach ($gMValue2 as $gMKey3 => $gMValue3){
                    $allGridCount[$gMKey2][$gMKey3][$gMValue3] = (isset($allGridCount[$gMKey2][$gMKey3][$gMValue3])) ? $allGridCount[$gMKey2][$gMKey3][$gMValue3]+1 : 1;
                }
            }
        }
    }
}
echo "<pre/>";print_r($allGridCount);

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