phpsocket通信简单实现

//确保在连接客户端时不会超时 set_time_limit(0); //设置ip和端口号 $address = "127.0.0.1"; $port = 2048; //调试的时候，可以多换端口来测试程序！ /** * 创建一个socket * af_inet=是ipv4 如果用ipv6，则参数为 af_inet6 * sock_stream为socket的tcp类型，如果是udp则使用sock_dgram */ $sock = socket_create(af_inet, sock_stream, sol_tcp) or die("socket_create() 失败的原因是:" . socket_strerror(socket_last_error()) . "/n"); //阻塞模式 socket_set_block($sock) or die("socket_set_block() 失败的原因是:" . socket_strerror(socket_last_error()) . "/n"); //绑定到socket端口 $result = socket_bind($sock, $address, $port) or die("socket_bind() 失败的原因是:" . socket_strerror(socket_last_error()) . "/n"); //开始监听 $result = socket_listen($sock, 4) or die("socket_listen() 失败的原因是:" . socket_strerror(socket_last_error()) . "/n"); echo "oknbinding the socket on $address:$port ... "; echo "oknnow ready to accept connections.nlistening on the socket ... n"; do { // never stop the daemon //它接收连接请求并调用一个子连接socket来处理客户端和服务器间的信息 $msgsock = socket_accept($sock) or die("socket_accept() failed: reason: " . socket_strerror(socket_last_error()) . "/n"); //读取客户端数据 echo "read client data n"; //socket_read函数会一直读取客户端数据,直到遇见n,t或者字符.php脚本把这写字符看做是输入的结束符. $buf = socket_read($msgsock, 8192); echo "received msg: $buf n"; //数据传送 向客户端写入返回结果 $msg = "welcome n"; socket_write($msgsock, $msg, strlen($msg)) or die("socket_write() failed: reason: " . socket_strerror(socket_last_error()) ."/n"); //一旦输出被返回到客户端,父/子socket都应通过socket_close($msgsock)函数来终止 socket_close($msgsock); } while (true); socket_close($sock);

set_time_limit(0); $host = "127.0.0.1"; $port = 2048; $socket = socket_create(af_inet, sock_stream, sol_tcp)or die("could not create socketn"); // 创建一个socket $connection = socket_connect($socket, $host, $port) or die("could not connet servern"); // 连接 socket_write($socket, "hello socket") or die("write failedn"); // 数据传送 向服务器发送消息 while ($buff = @socket_read($socket, 1024, php_normal_read)) { echo("response was:" . $buff . "n"); } socket_close($socket);