How to send and receive data from PHP to the socket server _php tips

This article illustrates how PHP sends and receives data from the socket server. Share to everyone for your reference. Specifically as follows:

In PHP to send data to other programs, you need to use the PHP socket function to the example, we look at a simple example, the code is as follows:

Copy Code code as follows:

/*socket send and receive data
@host (string) socket server IP
@post (int) port
@str (string) the data to send
@back 1|0 socket end has data return
Returns true|false| server-side data
*/
function sendsocketmsg ($host, $port, $str, $back =0) {
$socket = Socket_create (af_inet,sock_stream,0);
if ($socket < 0) return false;
$result = @socket_connect ($socket, $host, $port);
if ($result = = false) return false;
Socket_write ($socket, $str, strlen ($STR));

if ($back!=0) {
$input = Socket_read ($socket, 1024);
Socket_close ($socket);
return $input;
}else{
Socket_close ($socket);
return true;
}
}

The second parameter of Socker_read specifies the number of bytes to read, which you can use to limit the size of the data being fetched from the client.

Introduction to Sock functions

The name of the function	Describe
Socket_accept ()	Accept a socket connection
Socket_bind ()	Bind the socket to an IP address and port
Socket_clear_error ()	Clears the socket error or the last error code
Socket_close ()	Close a socket resource
Socket_connect ()	Start a socket connection
Socket_create_listen ()	Open a socket listener on the specified port
Socket_create_pair ()	Produces a pair of no different sockets into an array
Socket_create ()	Produces a socket that is equivalent to generating a socket's data structure
Socket_get_option ()	Get socket options
Socket_getpeername ()	To obtain an IP address for a remote-like host
Socket_getsockname ()	Get the IP address of the local socket
Socket_iovec_add ()	Add a new vector to a scatter/aggregate array
Socket_iovec_alloc ()	This function creates a IOVEC data structure that can send and receive read and write
Socket_iovec_delete ()	Delete an already allocated Iovec
Socket_iovec_fetch ()	Returns the data for the specified Iovec resource
Socket_iovec_free ()	Releasing a Iovec resource
Socket_iovec_set ()	Set the Iovec data new value
Socket_last_error ()	Gets the last error code for the current socket
Socket_listen ()	Listens for all connections by the specified socket
Socket_read ()	Read data of the specified length
SOCKET_READV ()	Read data coming from a scatter/aggregate array
SOCKET_RECV ()	End data to cache from socket
Socket_recvfrom ()	Accept data from the specified socket, or default current socket if not specified
Socket_recvmsg ()	Take the message from the Iovec.
Socket_select ()	Multi-channel selection
Socket_send ()	This function sends data to the connected socket
Socket_sendmsg ()	Send Message to Socket
Socket_sendto ()	A socket that sends a message to a specified address
Socket_set_block ()	Set to block mode in socket
Socket_set_nonblock ()	Socket is set to non block mode
Socket_set_option ()	Set socket options
Socket_shutdown ()	This function allows you to close a read, write, or specified socket
Socket_strerror ()	Returns a detailed error for the specified error number
Socket_write ()	Write data to the socket cache
Socket_writev ()	Write data to a scatter/aggregate array

Note:the Socket_read function reads the shell-side data until it meets n,t or characters, and the PHP script takes these characters as input terminator.

I hope this article will help you with your PHP program design.