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der inhalt von protocol ist entweder tcp oder udp.
getservbyname() returns the internet port which corresponds to service for the specified protocol as per /etc/services. protocol is either "tcp" or "udp" (in lowercase).
?php mysql_connect( "localhost", "mysql_user", "mysql_password") or die("keine verbindung möglich: ". mysql_error()); printf ("mysql protocol version: %s\n", mysql_get_proto_info());?
?php mysql_connect("localhost", "mysql_user", "mysql_password") or die("could not connect: ". mysql_error()); printf ("mysql protocol version: %s\n", mysql_get_proto_info());?