An example of socket programming in php-php Tutorial

An example of socket programming in php

Error_reporting (E_ALL ); Set_time_limit (0 ); Echo "TCP/IP Connection \ n "; $ Port = 1935; $ Ip = "127.0.0.1 "; /* + ------------------------------- * @ Socket connection process + ------------------------------- * @ Socket_create * @ Socket_connect * @ Socket_write * @ Socket_read * @ Socket_close + -------------------------------- */ $ Socket = socket_create (AF_INET, SOCK_STREAM, SOL_TCP ); If ($ socket <0 ){ Echo "socket_create () failed: reason:". socket_strerror ($ socket). "\ n "; } Else { Echo "OK. \ n "; } Echo "trying to connect '$ IP' port' $ port'... \ n "; $ Result = socket_connect ($ socket, $ ip, $ port ); If ($ result <0 ){ Echo "socket_connect () failed. \ nReason: ($ result)". socket_strerror ($ result). "\ n "; } Else { Echo "connect OK \ n "; } $ In = "Ho \ r \ n "; $ In. = "first blood \ r \ n "; $ Out = ''; If (! Socket_write ($ socket, $ in, strlen ($ in ))){ Echo "socket_write () failed: reason:". socket_strerror ($ socket). "\ n "; } Else { Echo "sent to server information! \ N "; Echo "sends the following content: $ in "; } While ($ out = socket_read ($ socket, 8192 )){ Echo "received server return message successful! \ N "; Echo "received content:", $ out; } Echo "disable SOCKET... \ n "; Socket_close ($ socket ); Echo "disable OK \ n "; ?> Server code: // Ensure that no timeout occurs when you connect to the client Set_time_limit (0 ); $ Ip = '1970. 0.0.1 '; $ Port = 1935; /* + ------------------------------- * @ Socket: entire communication process + ------------------------------- * @ Socket_create * @ Socket_bind * @ Socket_listen * @ Socket_accept * @ Socket_read * @ Socket_write * @ Socket_close + -------------------------------- */ /* ---------------- The following operations are all in the manual -------------------*/ If ($ sock = socket_create (AF_INET, SOCK_STREAM, SOL_TCP) <0 ){ Echo "socket_create () failed because:". socket_strerror ($ sock). "\ n "; } If ($ ret = socket_bind ($ sock, $ ip, $ port) <0 ){ Echo "socket_bind () failed because:". socket_strerror ($ ret). "\ n "; } If ($ ret = socket_listen ($ sock, 4) <0 ){ Echo "socket_listen () failed because:". socket_strerror ($ ret). "\ n "; } $ Count = 0; Do { If ($ msgsock = socket_accept ($ sock) <0 ){ Echo "socket_accept () failed: reason:". socket_strerror ($ msgsock). "\ n "; Echo "waiting for connection ..."; Break; } Else { // Send to client $ Msg = "test successful! \ N "; Socket_write ($ msgsock, $ msg, strlen ($ msg )); Echo "test succeeded \ n "; $ Buf = socket_read ($ msgsock, 8192 ); $ Talkback = "received message: $ buf \ n "; Echo $ talkback; If (++ $ count> = 5 ){ Break; }; } // Echo $ buf; Socket_close ($ msgsock ); } While (true ); Socket_close ($ sock ); ?>