note 108158 added to sockets.examples

what is $in = "HEAD / HTTP/1.1\r\n"; $in .= "Host: www.example.com\r\n"; $in .= "Connection: Close\r\n\r\n"; and why is this used.? how will i write another text from client socket. when i write another text , connection become closed. ---- Server IP: 69.147.83.197 Probable Submitter: 182.71.76.220 ---- Manual Page -- http://www.php.net/manual/en/sockets.examples.php Edit -- https://master.php.net/note/edit/108158 Del: integrated -- https://master.php.net/note/delete/108158/integrated Del: useless -- https://master.php.net/note/delete/108158/useless Del: bad code -- https://master.php.net/note/delete/108158/bad+code Del: spam -- https://master.php.net/note/delete/108158/spam Del: non-english -- https://master.php.net/note/delete/108158/non-english Del: in docs -- https://master.php.net/note/delete/108158/in+docs Del: other reasons-- https://master.php.net/note/delete/108158 Reject -- https://master.php.net/note/reject/108158 Search -- https://master.php.net/manage/user-notes.php