Array Count Values - Hhvm

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

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

Hack

function array_count_values<Tv as arraykey>(
  AnyArray $input,
): darray<Tv, int>;

Parameters

AnyArray$input - The array of values to count

Returns

mixed - - Returns an associative array of values from input as keys and their count as value.