What does this mean ?
 

On one of my link exchanges while checking the links I am getting this come up on one of them when I click on it, it pops up a window and tells me I have chosen to open an application/x-httpd-php The site does not load up at all just this browser popup asking me if I want to save it or open it . Anybody know what it is

Nevermind I found out what it is

"Php parsing is a common problem that is occurred due to misconfiguration in the server side, can be resists by accurate .htaccess rules."