MySQL in a Nutshell

Name

mysql_get_host_info( )

Synopsis

mysql_get_host_info([connection])

This returns information on the host for the current connection to MySQL. An identifier may be given to retrieve information on a host for a different connection.

...
$info = mysql_get_client_info( );
print "Connection Info:  $info \n";
...

Here are the results of this script when you run it on the host containing the server:

Connection Info:  127.0.0.1 via TCP/IP