Php+socket illustration

Php+socket Example

Client//Set error handling error_reporting (E_all);//Set processing time set_time_limit (0); $ip = "";            IP address $port = 1000;   Port number $socket = Socket_create (Af_inet, Sock_stream, sol_tcp); Create a socketif ($socket) echo "socket_create () Success!
\ n ", Else Echo" Socket_create () failed: ". Socket_strerror ($socket)."
\ n "; $conn = Socket_connect ($socket, $ip, $port); Establish the socket connection if ($conn) echo "Successfully connected to [". $ip. ":". $port. "]
\ n ", Else Echo" Socket_connect () failed: ". Socket_strerror ($conn)."
\ n "; Echo socket_read ($socket, 1024)."
"; $stdin = fopen (' Php://stdin ', ' R '); $ar = Array (" HELLO "," Help "," Test "," QUIT "), $i = 0;while (True) {//$command = Trim (Fgets ($stdin, 1024x768));//Socket_write ($socket, $command, strlen ($command)); echo "Send $ar [$i]
";    Socket_write ($socket, $ar [$i], strlen ($ar [$i])); $i + +;    $msg = Trim (Socket_read ($socket, 1024)); echo "Received: $msg
\ n "; if ($msg = = "Bye-bye") break;} Fclose ($stdin); Socket_close ($socket);

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server//Set error handling error_reporting (E_all);//Set run time Set_time_limit (0);//buffer Ob_implicit_flush (); $ip = "";             IP address $port = 1000;       Port number $socket = Socket_create (Af_inet, Sock_stream, sol_tcp); Create a socketif ($socket) echo "Socket_create () successed!\n"; else echo "Socket_create () failed:". Socket_strerror ($ socket). "              \ n "; $bind = Socket_bind ($socket, $ip, $port); Bind a socketif ($bind) echo "Socket_bind () successed!\n", Else Echo "Socket_bind () failed:". Socket_strerror ($bind).                 "\ n"; $listen = Socket_listen ($socket); Listen to Socketif ($listen) echo "Socket_listen () successed!\n", Else Echo "Socket_listen () failed:". Socket_strerror ($li Sten). "               \ n ";" while (true) {$msg = Socket_accept ($socket); Accept a socket if (! $msg) {echo "Socket_accept () failed:". Socket_strerror ($msg). "        \ n ";    Break    } $welcome = "Server Received: Welcome to PHP server!\n"; Socket_write ($msg, $welcome, strlen ($welcome));        while (true) {$command = Strtoupper (Trim (Socket_read ($msg, 1024)));        if (! $command) break;                Switch ($command) {case "Hello": $writer = "Hello everybody!";            Break                Case "QUIT": $writer = "Bye-bye";            Break                Case "Help": $writer = "Hello\tquit\thelp";            Break        Default: $writer = "Error command!";        } socket_write ($msg, $writer, strlen ($writer));    if ($command = = "QUIT") break;    } socket_close ($msg); if ($command = = "QUIT") break;}                   Socket_close ($socket); Close socket

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