php Socket通信

 <?php
 error_reporting(0);
 $host = "0.0.0.0";
 $port = 1082;
 $maxUser = 10;

 set_time_limit(0);

 $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) or die("socket create failed: " . socket_strerror( socket_last_error() ) . "\n");

 socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, true) or die("option set failed: " . socket_strerror( socket_last_error() ) . "\n");
 socket_bind($socket, $host, $port) or die("socket_bind() failed: " . socket_strerror( socket_last_error() ) . "\n");
 socket_listen( $socket, 3 ) or die("socket_listen() failed: " . socket_strerror( socket_last_error() ) . "\n");

 echo "Starting Listen!\n";
 do{
     if( $msgSocket = socket_accept($socket) === false ){
         echo "socket_accept() failed： " . socket_strerror( socket_last_error() ) . "\n";
         break;
     }else{
         $msg = "hello world";
         socket_write($msgSocket, $msg, strlen( $msg ));

         echo "read client message\n";
         $buf = socket_read($msgSocket, 8192);
         $talkback = "received message: $buf\n";

         echo $talkback;

         if( false === socket_write($msgSocket, $talkback, strlen($talkback)) ){
             echo "socket_write() failed reason:" . socket_strerror(socket_last_error($sock)) ."\n";
         }else{
             echo "send success\n";
         }

         //socket_send($msgSocket, $buf, $len, $flags);
     }
     socket_close( $msgSocket );

 }while ( true );

 socket_close($socket);
 ?>