Hphp Gettid

:::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. :::

Gets the kernel thread id of the current running thread

function hphp_gettid(): int;

Returns

• int - - The tid of the current running thread. In Linux, this is gettid()