WordPress config environment conditionals. See comments for instructions.

wp-config Environment Conditionals

// ** Define environments for different machines.
$user = $_ENV['LOGNAME'];
$host = $_SERVER['HTTP_HOST'];
$environment = $user . ' / ' . $host;
               
switch ($environment) {
	case 'chrisburbridge / mysite.dev':
		define('DB_NAME', 'xxxxxxxxx');
		define('DB_USER', 'aaaaaaa');
		define('DB_PASSWORD', 'mmmmmmmm');
		define('DB_HOST', 'localhost');
		define('SITE_DEV', 'true');
		break;

	case ' / dev.mysite.com':
		define('DB_NAME', 'yyyyyyyy');
		define('DB_USER', 'bbbbbbb');
		define('DB_PASSWORD', 'zzzzzzzz');
		define('DB_HOST', 'localhost');
		break;
		
	default:
		define('DB_NAME', 'zzzzzzzzz');
		define('DB_USER', 'cccccccc');
		define('DB_PASSWORD', 'nnnnnnnnn');
		define('DB_HOST', 'localhost');
		break;
}

Is it possible to write a define statement that only applies to one website in a multisite environment?

Basically like conditional instructions per website...

e.g. All of website allows for define ( revisions 3 ); but I wan't one of the website's in the multisite environment to have define ( revisions 10 ); that is setup for training.

Any help would be appreciated.