PHP Array function sequence array_count_values () statistics The number of occurrences of all values in an array function _php tips

Array_count_values () Definition and usage
The Array_count_values () function is used to count the occurrences of all values in the array.

This function returns an array whose key name is the value of the original array, and the key value is the number of times the value appears in the original array.

Grammar
Array_count_values (Array) parameter description
Array required. A specified array of inputs.

Example

Copy Code code as follows:

<?php
$a =array ("Cat", "Dog", "Horse", "Dog");
Print_r (Array_count_values ($a));
?>

Output:

Array ([Cat] => 1 [Dog] => 2 [horse] => 1)