CODEWITHSUNDEEP
php
Matas Žilinskas
Matas Žilinskas

Reputation: 15

Getting a number of same values in multi-dimensional array

Basically I have an array that looks like this:

Array
(
   Array
   (
       [action] => call
       [when] => today
   )
   Array
   (
       [action] => call
       [when] => today
   )
   Array
   (
       [action] => message
       [when] => today
   )
   Array
   (
       [action] => facetime
       [when] => tomorrow
   )
)

What would be the most appropriate way to count the most repeating action and how many times it repeated? Key 'when' does not matter.

Upvotes: 0

Views: 39

Answers (1)

Remy
Remy

Reputation: 807

You might resort to some of the built-in array functions.

Extracting the values of the column 'action' by using array_column and passing it to array_count_values will give us the frequency of each action.

If we then get the maximum number of occurrences by using max, we can use it to filter the associative array (with array_filter) to get those that occur most frequent.

$occurrences = array_count_values(array_column($arr, 'action'));
$max = max($occurrences);

return array_filter($occurrences, function ($val) use ($max) {
    return $val === $max;
});

Upvotes: 1

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