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;
}
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