stream_socket_recvfrom
Description
Receives data from a socket, connected or not
Syntax
stream_socket_recvfrom ( resource $socket , int $length [, int $flags = 0 [, string &$address ]] ) : string
Parameters
socket
The remote socket.
length
The number of bytes to receive from the socket.
flags
The value of flags can be any combination of the following:
STREAM_OOB | Process OOB (out-of-band) data. |
STREAM_PEEK | Retrieve data from the socket, but do not consume the buffer. Subsequent calls to fread() or stream_socket_recvfrom() will see the same data. |
address
If address is provided it will be populated with the address of the remote socket.
Return
Returns the read data, as a string
Examples
1 · socket length
<? $transport = "tcp"; $host = "127.0.0.1"; $port = "1234"; $local_socket = $transport . "://" . $host . ":" . $port; $server = stream_socket_server($local_socket); $socket = stream_socket_accept($server); $length = 1500; $return = stream_socket_recvfrom($socket, $length); echo $return; fclose($socket); fclose($server); ?>
2 · flags · STREAM_OOB
<? $transport = "tcp"; $host = "127.0.0.1"; $port = "1234"; $local_socket = $transport . "://" . $host . ":" . $port; $server = stream_socket_server($local_socket); $socket = stream_socket_accept($server); $length = 1500; $flags = STREAM_OOB; $return = stream_socket_recvfrom($socket, $length, $flags); echo $return; fclose($socket); fclose($server); ?>
3 · flags · STREAM_PEEK
<? $transport = "tcp"; $host = "127.0.0.1"; $port = "1234"; $local_socket = $transport . "://" . $host . ":" . $port; $server = stream_socket_server($local_socket); $socket = stream_socket_accept($server); $length = 1500; $flags = STREAM_PEEK; $return = stream_socket_recvfrom($socket, $length, $flags); echo $return; fclose($socket); fclose($server); ?>
4 · address
<? $transport = "tcp"; $host = "127.0.0.1"; $port = "1234"; $local_socket = $transport . "://" . $host . ":" . $port; $server = stream_socket_server($local_socket); $socket = stream_socket_accept($server); $length = 1500; $flags = STREAM_PEEK; $return = stream_socket_recvfrom($socket, $length, $flags, $address); echo $return . PHP_EOL; echo $address; fclose($socket); fclose($server); ?>