Miscellany

<?php

	$domains=array(
	
		//domain list
		"domain1.skyconn.info" => "path/to/the/image1",
		"domain2.skyconn.info" => "path/to/the/image2",
		"domain3.skyconn.info" => "path/to/the/image3",
		"domain4.skyconn.info" => "path/to/the/image4",
		//default
		"default" => "path/to/the/default/image",
	
	);
	
	$imagepath=isset($domains[$_SERVER['HTTP_HOST']])?$domains[$_SERVER['HTTP_HOST']]:$domains["default"];

?>