PHP array_count_values() – Counting the Frequency of Values in an Array
This article explains how the PHP function array_count_values() works, describes its single array parameter, return format, warning behavior for non‑string/integer elements, and provides a complete code example with expected output.
The PHP function array_count_values() returns an associative array where each key is a value from the input array and each value is the number of times that key appears.
It takes a single parameter $input , which is the array to be analyzed. The function returns an array mapping each distinct value to its count. Non‑string and non‑integer elements trigger an E_WARNING .
Example:
The output of the example is:
Array
(
[1] => 2
[hello] => 2
[world] => 1
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