Sometimes, you may need connection blocking from the link posted on the certain blog or site. In this case, you can block easilly by HTTP_REFERER.
Followings are the simple example blocking connection from foo.com posted content. But following example allows user to connect to the website directly. For instance, user can connect to http://foo.com when user put url on the browser, but in case of clicking link, the site can know where the connection comes from.
<?
// connection blocking Example
// Programmed 2008 by Kurapa Chunun Kang (kurapa@kurapa.com)
if (ereg('foo.com', $_SERVER['HTTP_REFERER']))
{
?><script language=javascript>self.location='http://xxx.com';</script><?
exit;
}
.
.
.
?>
// connection blocking Example
// Programmed 2008 by Kurapa Chunun Kang (kurapa@kurapa.com)
if (ereg('foo.com', $_SERVER['HTTP_REFERER']))
{
?><script language=javascript>self.location='http://xxx.com';</script><?
exit;
}
.
.
.
?>
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