Opens a connection to a Hyperwave server and returns a connection
index on success, or FALSE if the connection
could not be made. Each of the arguments should be a quoted string,
except for the port number. The username and
password arguments are
optional and can be left out. In such a case no identification with
the server will be done. It is similar to identify as user anonymous.
This function returns a connection
index that is needed by other Hyperwave functions. You can have
multiple connections open at once. Keep in mind, that the password
is not encrypted.
See also hw_pconnect().