The socket in PHP implements a client-to-server communication example

This article mainly introduces the use of PHP socket to implement client-to-server communication instances of the detailed, with a certain reference value, interested in small partners can refer to.

First, server.php service side:

<?php error_reporting (E_all); Set_time_limit (0); Ob_implicit_flush (); Local IP $address = ' localhost '; Set up 111 port for communication $port = 111; Create socket if ($sock = Socket_create (Af_inet, Sock_stream, sol_tcp) < 0) {echo "Socket creation failure Reason". Socket_strerror ($sock). "\ n"; if ($ret = Socket_bind ($sock, $address, $port)) < 0) {echo "Create socket Failure Reason". Socket_strerror ($ret). "\ n"; }//Listen if (($ret = Socket_listen ($sock, 5)) < 0) {echo "Listener failure Reason". Socket_strerror ($ret). "\ n"; } do {//Receive command if (($msgsock = @socket_accept ($sock)) < 0) {echo "command received failure reason:". Socket_strerror ($msgsock).     "\ n";   Break } $msg = "\nphp Test Server. \ n "." With Quit,shutdown,sun ...    Wait for the command to test. \ n ";    @socket_write ($msgsock, $msg, strlen ($msg)); do {if (false = = = ($buf = @socket_read ($msgsock, 2048, Php_normal_read)) {echo "Socket_read () Failed:reaso N: ". Socket_strerror ($ret).         "\ n";     Break 2;     } if (! $buf = Trim ($buf)) {continue; } if ($buf == ' quit ') {break;         } if ($buf = = ' shutdown ') {socket_close ($msgsock);     Break 2;     } if ($buf = = ' Sun ') {echo ' What is you doing? ';     } $talkback = "backinformation: ' $buf '. \ n";     Socket_write ($msgsock, $talkback, strlen ($talkback));   echo "$BUF \ n";    } while (true);  Socket_close ($msgsock);  } while (true); Socket_close ($sock);?>

Second, client.php client:

<?php error_reporting (E_all); Port 111 $service _port = 111; Local $address = ' localhost '; Create TCP/IP socket $socket = socket_create (Af_inet, Sock_stream, sol_tcp); if ($socket < 0) {     echo "Socket Creation failure Reason:". Socket_strerror ($socket). "\ n"; } else {     echo "Ok,he he.\n";} $result = Socket_connect ($socket, $address, $service _port); if ($result < 0) {     E Cho "Socket Connection failure Reason: ($result)". Socket_strerror ($result). "\ n";  } else {     echo "ok.\n";}//Send command $in = "head/http/1.1\r\n"; $in. = "connection:close\r\n\r\n"; $out = "; echo" send Command ... ";"; $in = "sun\n"; Socket_write ($socket, $in, strlen ($in)); echo "ok.\n"; echo "Reading backinformatin:\n\n"; while ($out = Socket_read ($socket, 2048)) {     echo $out;} echo "Close socket ..."; Socket_close ($socket); echo "Ok,he he.\n\n";?>

These two pieces of code is a simple introduction to the use of PHP to implement client and server communication

Specific operation, under DOS with the PHP command to open the server, in the listening state.

Open a DOS window, open the client with PHP command, will get the response from the server ....

The above is the whole content of this article, I hope that everyone's study has helped.