Host - Hhvm — ContextQMD

:::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. :::

The hostname associated with the current connection

Hack

public function host(): string;

Returns

string - The hostname as a string.

Examples

The following example shows how to get the host of the MySQL server that this connection is associated with via AsyncMysqlConnection::host.

basic-usage.hack

use \Hack\UserDocumentation\API\Examples\AsyncMysql\ConnectionInfo as CI;

async function connect(
  \AsyncMysqlConnectionPool $pool,
): Awaitable<\AsyncMysqlConnection> {
  return await $pool->connect(
    CI::$host,
    CI::$port,
    CI::$db,
    CI::$user,
    CI::$passwd,
  );
}
async function get_host(): Awaitable<string> {
  $pool = new \AsyncMysqlConnectionPool(darray[]);
  $conn = await connect($pool);
  $info = $conn->host();
  $conn->close();
  return $info;
}

<<__EntryPoint>>
async function run(): Awaitable<void> {
  $info = await get_host();
  \var_dump($info);
}
```.hhvm.expectf
string(%d) "%s"
```.example.hhvm.out
string(9) "localhost"
```.skipif
await \Hack\UserDocumentation\API\Examples\AsyncMysql\skipif_async();