socket_accept(3) [php man page]

SOCKET_ACCEPT(3)							 1							  SOCKET_ACCEPT(3)

socket_accept - Accepts a connection on a socket

SYNOPSIS

       resource socket_accept (resource  $socket)

DESCRIPTION

	After  the socket $socket has been created using socket_create(3), bound to a name with socket_bind(3), and told to listen for connections
       with socket_listen(3), this function will accept incoming connections on that socket. Once a successful connection is made,  a  new  socket
       resource  is returned, which may be used for communication. If there are multiple connections queued on the socket, the first will be used.
       If there are no pending connections, socket_accept(3) will block until a connection becomes present. If $socket has been made  non-blocking
       using socket_set_blocking(3) or socket_set_nonblock(3), FALSE will be returned.

	The  socket  resource  returned by socket_accept(3) may not be used to accept new connections. The original listening socket $socket, how-
       ever, remains open and may be reused.

PARAMETERS

	      o $socket
		- A valid socket resource created with socket_create(3).

RETURN VALUES

	Returns a new socket resource on success, or FALSE on error. The actual error code can be retrieved by calling socket_last_error(3).  This
       error code may be passed to socket_strerror(3) to get a textual explanation of the error.

SEE ALSO

       socket_connect(3), socket_listen(3), socket_create(3), socket_bind(3), socket_strerror(3).

PHP Documentation Group 													  SOCKET_ACCEPT(3)

SOCKET_RECVFROM(3)							 1							SOCKET_RECVFROM(3)

socket_recvfrom - Receives data from a socket whether or not it is connection-oriented

SYNOPSIS

       int socket_recvfrom (resource  $socket, string  &$buf, int  $len, int  $flags, string  &$name, [int  &$port])

DESCRIPTION

	The  socket_recvfrom(3) function receives $len bytes of data in $buf from $name on port $port (if the socket is not of type AF_UNIX) using
       $socket. socket_recvfrom(3) can be used to gather data from both connected and unconnected sockets. Additionally, one or more flags can	be
       specified to modify the behaviour of the function.

	The  $name  and  $port	must  be passed by reference. If the socket is not connection-oriented, $name will be set to the internet protocol
       address of the remote host or the path to the UNIX socket. If the socket is connection-oriented, $name is  NULL.  Additionally,	the  $port
       will contain the port of the remote host in the case of an unconnected AF_INET or AF_INET6 socket.

PARAMETERS

	      o $socket
		- The $socket must be a socket resource previously created by socket_create().

	      o $buf
		- The data received will be fetched to the variable specified with $buf.

	      o $len
		- Up to $len bytes will be fetched from remote host.

	      o $flags
		- The value of $flags can be any combination of the following flags, joined with the binary OR ( |) operator.

	      Possible values for $flags

	      +-------------+---------------------------------------------------+
	      |    Flag     |							|
	      | 	    |							|
	      | 	    |			 Description			|
	      | 	    |							|
	      +-------------+---------------------------------------------------+
	      | 	    |							|
	      |  MSG_OOB    |							|
	      | 	    |							|
	      | 	    |		  Process out-of-band data.		|
	      | 	    |							|
	      | 	    |							|
	      |  MSG_PEEK   |							|
	      | 	    |							|
	      | 	    |  Receive	data  from the beginning of the receive |
	      | 	    | queue without removing it from the queue. 	|
	      | 	    |							|
	      | 	    |							|
	      |MSG_WAITALL  |							|
	      | 	    |							|
	      | 	    |  Block until at least $len are received. However, |
	      | 	    | if  a signal is caught or the remote host discon- |
	      | 	    | nects, the function may return less data. 	|
	      | 	    |							|
	      | 	    |							|
	      |MSG_DONTWAIT |							|
	      | 	    |							|
	      | 	    |  With this flag set, the function returns even if |
	      | 	    | it would normally have blocked.			|
	      | 	    |							|
	      +-------------+---------------------------------------------------+
	      o $name
		- If the socket is of the type AF_UNIX type, $name is the path to the file. Else, for unconnected sockets, $name is the IP address
		of, the remote host, or NULL if the socket is connection-oriented.

	      o $port
		- This argument only applies to AF_INET and AF_INET6 sockets, and specifies the remote port from which the data  is  received.	If
		the socket is connection-oriented, $port will be NULL.

RETURN VALUES

       socket_recvfrom(3)  returns the number of bytes received, or FALSE if there was an error. The actual error code can be retrieved by calling
       socket_last_error(3). This error code may be passed to socket_strerror(3) to get a textual explanation of the error.

EXAMPLES

       Example #1

	      socket_recvfrom(3) example

	      <?php
	      error_reporting(E_ALL | E_STRICT);

	      $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
	      socket_bind($socket, '127.0.0.1', 1223);

	      $from = '';
	      $port = 0;
	      socket_recvfrom($socket, $buf, 12, 0, $from, $port);

	      echo "Received $buf from remote address $from and remote port $port" . PHP_EOL;
	      ?>

	       This example will initiate a UDP socket on port 1223 of 127.0.0.1 and print at most 12 characters received from a remote host.

CHANGELOG

       +--------+----------------------------------------+
       |Version |					 |
       |	|					 |
       |	|	       Description		 |
       |	|					 |
       +--------+----------------------------------------+
       | 4.3.0	|					 |
       |	|					 |
       |	| socket_recvfrom(3) is now binary safe. |
       |	|					 |
       +--------+----------------------------------------+
SEE ALSO

       socket_recv(3), socket_send(3), socket_sendto(3), socket_create(3).

PHP Documentation Group 													SOCKET_RECVFROM(3)