详解如何通过SSH通道来访问MySQL

<?php

$smysql = mysql_connect( "127.0.0.1:3307", "dbuser", "PASS" );

mysql_select_db( "db", $smysql );

?>

Making It A Daemon

A quick and dirty way to make sure the connection runs on startup and respawns on failure is to add it to /etc/inittab and have the init process (the, uh, kernel) keep it going.

Add the following to /etc/inittab on each client:

sm:345:respawn:/usr/bin/ssh -Ng -L 3307:127.0.0.1:3306 myuser@remotehost.com

And that should be all you need to do. Send init the HUP signal ( kill -HUP 1 ) to make it reload the configuration. To turn it off, comment out the line and HUP init again.