php使用socket

1. 服务端（server.php）：

   <?php 
   set_time_limit(0);
   ob_implicit_flush();
   $host = "127.0.0.1";
   $port = 12390;
   $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or exit("创建失败");
   socket_set_block($socket) or exit("设置阻塞模式失败"); 
   socket_bind($socket, $host, $port) or exit("监听失败");
   socket_listen($socket, 4) or exit("设置最大监听数失败");
   echo "开始监听::$host:$port\n";
   while ($data = trim(fgets(STDIN))) {
       $msgsock = socket_accept($socket);
       socket_write($msgsock, $data, strlen($data));
       while($buf = socket_read($msgsock, 2048)){
           echo "从客户端接收到消息：$buf".PHP_EOL;
       }
       socket_close($msgsock);
       // socket_close($msgsock);
       // $buf = socket_read($msgsock,1024);
    //    echo "从客户端接收数据：$buf".PHP_EOL;
       // socket_close($msgsock);
       // continue;
   }
   socket_close($socket);

2. 客户端（client.php）：

   <?php 
   set_time_limit(0);
   $host = "127.0.0.1";  
   $port = 12390;
   $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or exit("创建失败");
   echo "连接到::$host:$port...\n";
   $result = socket_connect($socket, $host, $port) or exit("连接服务器失败");
   while($buf = socket_read($socket, 2048)){
   echo "从服务端接收到消息：$buf".PHP_EOL;
   while($data = trim(fgets(STDIN))){
       socket_write($socket, $data, strlen($data));
   }
   }
   socket_close($socket);