Hphp Set Hardware Events - 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. :::

Hack

function hphp_set_hardware_events(
  string $events = NULL,
): bool;

Parameters

string $events = NULL - comma separated list of hardware events

Returns

bool - - returns TRUE on success and FALSE on failure