GetFamily

:::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. :::

Get the address family of the socket

abstract public function getFamily(): HH\Lib\OS\AddressFamily;

It may be more useful to check the type of the sockaddr object instead, e.g.

- if ($sa->getFamily() === OS\AddressFamily::AF_UNIX) {
+ if ($sa is OS\sockaddr_un) {

Returns

• HH\Lib\OS\AddressFamily