PHP如何计算2D数组中的重复值？ [重复]

Question

This question already has an answer here:

• Count duplicate values in multidimensional array 2 answers
• PHP: Check for duplicate values in a multidimensional array 5 answers

I have this array:

Array ( [55118] => Array ( [id] => 55118 
                           [usr_name] => Name 1
                           [usr_employment] => Fulltime
                         )
        [55179] => Array ( [id] => 55179
                           [usr_name] => Name 2
                           [usr_employment] => Fulltime
                         )
        [55549] => Array ( [id] => 55549
                           [usr_name] => Name 1
                           [usr_employment] => Fulltime
                         )
      )

Now 'd like to count how many times "Name 1" exist in my array.
My problem is that it's a 2D array.

So i'd like to print:

Name 1, 2 times
Name 2, 1 time

I can't find a correct answer to this question before.

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Answer 1

You can use array_count_values and array_column.

$counts = array_count_values(array_column($arr, "usr_name"));

This should give you an associative array with key being the name and the value being the count of that name.