What is the use of array_count_values() function in PHP ?

In this article we will discuss about array_count_values() function in PHP

The array_count_values() function is used to count all the values inside an array. In other words, we can say that array_count_values() function is used to calculate the frequency of all of the elements of an array.

Syntax:

array array_count_values( $array )

Parameters: This function accepts a single parameter $array. This parameter is the array for which we need to calculate the count of values present in it.

Return Value: This function returns an associative array with key-value pairs in which keys are the elements of the array passed as parameters and values are the frequency of these elements in an array.

Example: PHP Program to count values in an array.

PHP

<?php


// Array of subjects with 4 elements
$array1 = array("Python", "c/cpp", "php", "java");

// Count values in an array
print_r(array_count_values($array1));

?>

Output

Array
(
    [Python] => 1
     => 1
     => 1
     => 1
)

Example 2:

PHP

<?php


// Array of subjects with 8 elements
$array1 = array("Python", "c/cpp", "php",
    "java","R programming", "c/cpp", "php", "java");

// Count values in an array
print_r(array_count_values($array1));

?>

Output

Array
(
    [Python] => 1
     => 2
     => 2
     => 2
    [R programming] => 1
)

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