Sockets

Anyone know if there is a way yet to see if a socket is still connected to a host? I want to use a socket to send "GET / HTTP/1.0\r\n\r\n" over a socket, and retrieve everything the server sends. That part works great, but I can't figure out when the remote host disconnects. I have the CVS version of php. Here is the function so far. The problem is at the end. function getdata ($host, $port, $data) { /* well, the below comment would be true if i could get it working! */ /* This function sends $data to $host:$port, then returns the response * until connection is severed. Great for HTTP, but won't usually work * too well in protocols where data needs to be analyzed, and replied * to appropriatly, such as POP v3 */ // Create a socket $so = socket_create (AF_INET, SOCK_STREAM, getprotobyname("TCP")); if ( !$so ) { exit("Could not create socket.\n"); } // Connect... $ec = socket_connect ($so, $host, $port); if ( $ec < 0 ) { exit ("ERROR $ec: ".socket_strerror($ec)); } /* Write $data to socket. The manual doesn't say what it returns, but I'll * assume (even though it makes an ass out of you and me) that it is the same * as socket_connect() because it wouldn't be logical to return a descriptor. */ $ec = socket_write ( $so, $data, ( strlen($data) )); if ( $ec < 0 ) { exit ("ERROR $ec: ".socket_strerror($ec)); } else { /* PROBLEM IS HERE- what do I put instead of while ( $x == 0 )??? */ $x = 0; while ( $x == 0 ) { $buffer = socket_read ( $so, 1, PHP_BINARY_READ); $string .= $buffer; } } // And (hopefully) return $string, for your viewing pleasure. return $string; }