socket 简单的php socket 客户端/服务器端编程

客户端代码

<?php
 error_reporting(E_ALL);
 set_time_limit(0);
 echo "<h2>TCP/IP Connection</h2>\n";

 $port = 1935;
 $ip = "127.0.0.1";

 /*
  +-------------------------------
  *    @socket连接整个过程
  +-------------------------------
  *    @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 "试图连接 '$ip' 端口 '$port'...\n";
 $result = socket_connect($socket, $ip, $port);
 if ($result < 0) {
     echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";
 }else {
     echo "连接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($socket) . "\n";
 }else {
     echo "发送到服务器信息成功！\n";
     echo "发送的内容为:<font color='red'>$in</font> <br>";
 }

 while($out = socket_read($socket, 8192)) {
     echo "接收服务器回传信息成功！\n";
     echo "接受的内容为:",$out;
 }

 echo "关闭SOCKET...\n";
 socket_close($socket);
 echo "关闭OK\n";
 ?>

                                服务端代码

<?php
 //确保在连接客户端时不会超时
 set_time_limit(0);

 $ip = '127.0.0.1';
 $port = 1935;

 /*
  +-------------------------------
  *    @socket通信整个过程
  +-------------------------------
  *    @socket_create
  *    @socket_bind
  *    @socket_listen
  *    @socket_accept
  *    @socket_read
  *    @socket_write
  *    @socket_close
  +--------------------------------
  */

 /*----------------    以下操作都是手册上的    -------------------*/
 if(($sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) < 0) {
     echo "socket_create() 失败的原因是:".socket_strerror($sock)."\n";
 }

 if(($ret = socket_bind($sock,$ip,$port)) < 0) {
     echo "socket_bind() 失败的原因是:".socket_strerror($ret)."\n";
 }

 if(($ret = socket_listen($sock,4)) < 0) {
     echo "socket_listen() 失败的原因是:".socket_strerror($ret)."\n";
 }

 $count = 0;

 do {
     if (($msgsock = socket_accept($sock)) < 0) {
         echo "socket_accept() failed: reason: " . socket_strerror($msgsock) . "\n";
         echo "等待连接。。。。";
         break;
     } else {

         //发到客户端
         $msg ="测试成功！\n";
         socket_write($msgsock, $msg, strlen($msg));

         echo "测试成功了啊\n";
         $buf = socket_read($msgsock,8192);

         $talkback = "收到的信息:$buf\n";
         echo $talkback;

         if(++$count >= 5){
             break;
         };

     }
     //echo $buf;
     socket_close($msgsock);

 } while (true);

 socket_close($sock);
 ?>