PHP Manual: array_count_values


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array_count_values

(PHP 4, PHP 5)

array_count_values -- Counts all the values of an array

Description

array array_count_values ( array input )

array_count_values() returns an array using the values of the input array as keys and their frequency in input as values.

Parameters

input

The array of values to count

Return Values

Returns an assosiative array of values from input as keys and their count as value.

Errors/Exceptions

Throws E_WARNING for every element which is not string or integer.

Examples

Example 1. array_count_values() example

<?php
$array
= array(1, "hello", 1, "world", "hello");
print_r(array_count_values($array));
?>

The above example will output:

Array
(
    [1] => 2
    [hello] => 2
    [world] => 1
)