php的socket连接到服务端模版,socket服务端
在整理新框架的时候,发现对于一些缓存数据,需要对外的接口访问,而比较方便的是php的接口,所以临时研究了下php如何连接java服务端。
先贴上代码:phprequire_once 'CRC16.php';/*-----------------------------| 向服务器发送数据包------------------------------*/classServer{//发送数据包publicstaticfunction sendPacket($packet, $host, $port){$protocol ='tcp';$get_prot = getprotobyname ( $protocol );//创建socket$socket = socket_create ( AF_INET, SOCK_STREAM, $get_prot );//建立连接$conn = socket_connect ( $socket, $host, $port );if(!$conn){socket_close($socket);exit("socket connect failed!");}$buffer =@socket_read($socket,9, PHP_NORMAL_READ);$crcCode =(ord($buffer[7])8)+ord($buffer[8]);$len = strlen($packet);$newpacket = CRC16::encode($packet, $crcCode,4);socket_send ( $socket, $newpacket, $len,0);//等待接受$head =@socket_read($socket,4,PHP_NORMAL_READ);$len =(ord($head[0])24)+(ord($head[1])16)+(ord($head[2])8)+ord($head[3]);$content =@socket_read($socket,$len-4,PHP_NORMAL_READ);socket_close ( $socket );return substr($content,3);}publicstaticfunction packet($group,$cmd,$message){$size = strlen($message)+8;$str ='';$str .=self::writeInt($size);$str .=self::writeByte(0);$str .=self::writeByte($group);$str .=self::writeByte($cmd);$str .=self::writeByte(1);$str .= $message;return $str;}//写进2个byte的数据privatestaticfunction writeShort($s){return pack ("n", $s );}//写进4个byte的数据privatestaticfunction writeInt($N){return pack ("N", $N );}//写进1个byte的数据privatestaticfunction writeByte($b){return pack ("c", $b );}}
服务器提供数据缓冲区,并提供一种用户识别机制。以此来给聊天用户双方发送相应的信息。
看似用户与用户之间的通信实质上是用户在与服务器通信。
我的一点理解
查一下端口把











