Re: Sockets (reading)

Philip Thompson wrote: > Hi. > > During a socket read, why would all the requested number of bytes not > get sent? For example, I request 1000 bytes: > > <?php > $data = @socket_read ($socket, 2048, PHP_BINARY_READ); > ?> > > This is actually in a loop, so I can get all the data if split up. So, > for example, here's how the data split up in 3 iterations (for 1000 bytes): > > 650 bytes > 200 bytes > 150 bytes > > But if I can accept up to 2048 bytes per socket read, why would it not > pull all 1000 bytes initially in 1 step? Any thoughts on this would be > greatly appreciated! > > Thanks, > ~Philip > Is it possible that you are receiving a \r, \n, or \0 and that is stopping the input? Check the Parameters the second argument for Length options. http://us3.php.net/socket_read Here is a shortened version of a script that I use to do something similar. <?php error_reporting(E_ALL); ini_set('display_errors', 'On'); // Set time limit to indefinite execution set_time_limit(0); // Set the ip and port we will listen on define('LISTEN_IP', '<your IP address>'); // IP to listin on define('LISTEN_PORT', <port>); // Port number define('PACKET_SIZE', 512); // 512 bytes define('SOCKET_TIMOUT', 2); // Seconds /* Open a server socket to port 1234 on localhost */ if ( $socket = @stream_socket_server('udp://'.LISTEN_IP.':'.LISTEN_PORT, $errno, $errstr, STREAM_SERVER_BIND) ) { while ( true ) { $buff = stream_socket_recvfrom($socket, PACKET_SIZE, 0, $remote_ip); if ( !empty($buff) ) { print('Received Data: '.PHP_EOL); print('Do something with it...'.PHP_EOL); } else { print('Empty String'.PHP_EOL); } } fclose($socket); } else { print("[{$errno}] {$error}".PHP_EOL); } ?>