I'd probably set one starting file for radioscanningtw.jidanni.org and another for taizhongbus.jidanni.org, containing its respective LocalSettings code:
define( 'MEDIAWIKI', true ); require_once( 'mediawiki/StartProfiler.php' ); require_once( 'mediawiki/includes/Defines.php' );
<Your LocalSettings content>
require_once( 'mediawiki/includes/OutputHandler.php' ); ob_start( 'wfOutputHandler' );
require_once( 'mediawiki/index.php');
Commenting from index.php require_once( './includes/WebStart.php' ); and adding to the top of the per-server file, the bunch of checkings includes/WebStart does. Our devs opinion will be more useful, as i'm sure the apaches doesn't have a mediawiki copy per wikipedia ;)
default: $wgDBserver="mysql.$wgServerName"; So what do you think? Asking for trouble? Will be sorry later? Heading for a fall?
I suppose you know what will be happening if someone finds a way to overwrite your $wgServer variable...