PHP is probably not a good choice for COMET because the required open connection will block your server: http://stackoverflow.com/questions/603201/using-comet-

PHP is probably not a good choice for COMET because the required open connection will block your server: http://stackoverflow.com/questions/603201/using-comet-with-php http://stackoverflow.com/questions/603201/using-comet-with-p... I guess this is the corner case one would use services like pusherapp.com PS. Don't you like services that deliberately try to hide information from you?