PHP socket creation and monitoring implementation method, Phpsocket to create a listening _php tutorial

PHP socket creation and monitoring implementation method, Phpsocket create monitoring

This paper introduces how to implement socket creation and monitoring in PHP. Share to everyone for your reference. Specific as follows:

Here is an example of a socket-related function in PHP, such as creating a socket, accepting a socket connection, writing a socket and initializing a connection, and so on, with the following example code:
Copy CodeThe code is as follows: $ip = "127.0.0.1"; Define IP Address
$port = 1000; Defining ports
$socket =socket_create (AF_INET,SOCK_STREAM,SOL_TCP); Create socket
$bind =socket_bind ($socket, $ip, $prot); Bind a socket
$listen =socket_listen ($socket); Monitor socket
$msg =socket_accept ($socket); Accept a socket connection
$welcome = "Welcome to PHP service/n"; Defining strings
Socket_write ($msg, $welcome, strlen ($welcome)); Write a socket
Socket_close ($socket); Close socket

*/

$ip = "127.0.0.1"; Define IP Address
$port = 1000; Defining ports
$socket =socket_create (AF_INET,SOCK_STREAM,SOL_TCP); Create socket
Socket_clear_error ($socket); Empty the socket error message
Socket_close ($socket); Close socket

/*

*/
$sockets =array (); Define an array
/* Create a pair of sockets and store them in the array */
if (!socket_create_pair (af_unix,sock_stream,0, $sockets))//If the socket was not created successfully
{
Echo Socket_strerror (Socket_last_error ()); Output error message
}
/* Send and receive information using the created socket */
if (!socket_write ($sockets [0], "abcdef123n", strlen ("abcdef123n"))//If execution of socket write fails
{
Cho Socket_strerror (Socket_last_error ()); Output error message
}
if (! $data =socket_read ($sockets [1],strlen ("abcdef123n"), Php_binary_read)//If reading information fails
{
Echo Socket_strerror (Socket_last_error ()); Output error message
}
Var_dump ($data); Output Socket Data information
/* Close socket*/
Socket_close ($sockets [0]); Close Socket1
Socket_close ($sockets [1]); Close Socket2

/*
*/

$ip = "127.0.0.1"; Define IP Address
$port = 1000; Defining ports
$socket =socket_create (AF_INET,SOCK_STREAM,SOL_TCP); Create socket
Socket_set_nonblock ($socket); Set not locked state
Socket_connect ($socket, $ip, $port); Initializing a connection
Socket_set_block ($sock); Lock socket
Switch (Socket_select ($r =array ($socket), $w =array ($socket), $f =array ($socket), 5))
{
Case 2:
echo "Connection is denied! n ";
Break
Case 1:
echo "Successfully connected n";
Break
Case 0:
echo "Connection timeout n";
Break
}

/*

*/

/* The following code defines a socket listener class */
Class SocketListener extends socket
{
function __construct ($port =null)//define __construct method
{
$this->stream= @socket_create_listen ($port $port:p ort); Open Port Accept Connection
}
function isactive ()//define IsActive method
{
if ($this->stream)//If there is a connection
{
return true; Return truth
}
else//No connection
{
return false; return False value
}
}
}

I hope this article is helpful to everyone's PHP programming.

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