The Web server can query specific variables within the application.
The server will typically perform a query on application startup in order to to automate certain aspects of
system configuration.
The application responds by sending a record {FCGI_GET_VALUES_RESULT, 0, ...} with the values supplied.
If the application doesn't understand a variable name that was included in the query, it omits that name from
the response.
FCGI_GET_VALUES is designed to allow an open-ended set of variables.
The initial set provides information to help the server perform application and connection management:
FCGI_MAX_CONNS: The maximum number of concurrent transport connections this application will accept,
e.g. "1" or "10".
FCGI_MAX_REQS: The maximum number of concurrent requests this application will accept, e.g. "1" or "50".
FCGI_MPXS_CONNS: "0" if this application does not multiplex connections (i.e. handle concurrent requests
over each connection), "1" otherwise.
public function testUnpacking()
{
$request = GetValues::unpack(hex2bin(self::$rawMessage));
$this->assertEquals(FCGI::GET_VALUES, $request->getType());
$this->assertEquals(array('FCGI_MPXS_CONNS' => ''), $request->getValues());
}
