Php socket数据编码

bytes.php  字节编码类

/** * byte数组与字符串转化类 * @author  * created on 2011-7-15 */class bytes {       /**     * 转换一个string字符串为byte数组     * @param $str 需要转换的字符串     * @param $bytes 目标byte数组     * @author zikie     */        public static function getbytes($str) {        $len = strlen($str);        $bytes = array();           for($i=0;$i= 128){                   $byte = ord($str[$i]) - 256;               }else{                   $byte = ord($str[$i]);               }            $bytes[] =  $byte ;        }        return $bytes;    }       /**     * 将字节数组转化为string类型的数据     * @param $bytes 字节数组     * @param $str 目标字符串     * @return 一个string类型的数据     */        public static function tostr($bytes) {        $str = '';        foreach($bytes as $ch) {            $str .= chr($ch);        }           return $str;    }       /**     * 转换一个int为byte数组     * @param $byt 目标byte数组     * @param $val 需要转换的字符串     * @author zikie     */       public static function integertobytes($val) {        $byt = array();        $byt[0] = ($val & 0xff);        $byt[1] = ($val >> 8 & 0xff);        $byt[2] = ($val >> 16 & 0xff);        $byt[3] = ($val >> 24 & 0xff);        return $byt;    }       /**     * 从字节数组中指定的位置读取一个integer类型的数据     * @param $bytes 字节数组     * @param $position 指定的开始位置     * @return 一个integer类型的数据     */        public static function bytestointeger($bytes, $position) {        $val = 0;        $val = $bytes[$position + 3] & 0xff;        $val > 8 & 0xff);        return $byt;    }       /**     * 从字节数组中指定的位置读取一个short类型的数据。     * @param $bytes 字节数组     * @param $position 指定的开始位置     * @return 一个short类型的数据     */        public static function bytestoshort($bytes, $position) {        $val = 0;        $val = $bytes[$position + 1] & 0xff;        $val = $val    <p class="sycode">       </p>    <p>  </p>  <p> socket.class.php  socket赋值类</p>  <p class="sycode">   </p><p class="sycode">       </p>   <pre style="代码" class="precsshei"><?phpdefine ("CONNECTED", true);define("DISCONNECTED", false);/** * Socket class *  *   * @author Seven  */Class Socket{    private static $instance;    private $connection = null;        private $connectionState = DISCONNECTED;        private $defaultHost = "127.0.0.1";        private $defaultPort = 80;        private $defaultTimeout = 10;        public  $debug = false;        function __construct()    {            }    /**     * Singleton pattern. Returns the same instance to all callers     *     * @return Socket     */    public static function singleton()    {        if (self::$instance == null || ! self::$instance instanceof Socket)        {            self::$instance = new Socket();                   }        return self::$instance;    }    /**     * Connects to the socket with the given address and port     *      * @return void     */    public function connect($serverHost=false, $serverPort=false, $timeOut=false)    {                if($serverHost == false)        {            $serverHost = $this->defaultHost;        }                if($serverPort == false)        {            $serverPort = $this->defaultPort;        }        $this->defaultHost = $serverHost;        $this->defaultPort = $serverPort;                if($timeOut == false)        {            $timeOut = $this->defaultTimeout;        }        $this->connection = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);                 if(socket_connect($this->connection,$serverHost,$serverPort) == false)        {            $errorString = socket_strerror(socket_last_error($this->connection));            $this->_throwError("Connecting to {$serverHost}:{$serverPort} failed.<br>Reason: {$errorString}");        }else{            $this->_throwMsg("Socket connected!");        }                $this->connectionState = CONNECTED;    }        /**     * Disconnects from the server     *      * @return True on succes, false if the connection was already closed     */    public function disconnect()    {        if($this->validateConnection())        {            socket_close($this->connection);            $this->connectionState = DISCONNECTED;            $this->_throwMsg("Socket disconnected!");            return true;        }        return false;    }    /**     * Sends a command to the server     *      * @return string Server response     */    public function sendRequest($command)    {        if($this->validateConnection())        {            $result = socket_write($this->connection,$command,strlen($command));            return $result;        }        $this->_throwError("Sending command \"{$command}\" failed.<br>Reason: Not connected");    }                public function isConn()    {        return $this->connectionState;    }            public function getUnreadBytes()    {                $info = socket_get_status($this->connection);        return $info['unread_bytes'];    }        public function getConnName(&$addr, &$port)    {        if ($this->validateConnection())        {            socket_getsockname($this->connection,$addr,$port);        }    }               /**     * Gets the server response (not multilined)     *      * @return string Server response     */    public function getResponse()    {        $read_set = array($this->connection);            while (($events = socket_select($read_set, $write_set = NULL, $exception_set = NULL, 0)) !== false)         {            if ($events > 0)            {                foreach ($read_set as $so)                {                    if (!is_resource($so))                    {                        $this->_throwError("Receiving response from server failed.<br>Reason: Not connected");                        return false;                    }elseif ( ( $ret = @socket_read($so,4096,PHP_BINARY_READ) ) == false){                        $this->_throwError("Receiving response from server failed.<br>Reason: Not bytes to read");                        return false;                    }                    return $ret;                }            }        }                return false;    }    public function waitForResponse()    {        if($this->validateConnection())        {            return socket_read($this->connection, 2048);        }                $this->_throwError("Receiving response from server failed.<br>Reason: Not connected");    return false;    }    /**     * Validates the connection state     *      * @return bool     */    private function validateConnection()    {        return (is_resource($this->connection) && ($this->connectionState != DISCONNECTED));    }    /**     * Throws an error     *      * @return void     */    private function _throwError($errorMessage)    {        echo "Socket error: " . $errorMessage;    }    /**     * Throws an message     *      * @return void     */    private function _throwMsg($msg)    {        if ($this->debug)        {            echo "Socket message: " . $msg . "\n\n";        }    }    /**     * If there still was a connection alive, disconnect it     */    public function __destruct()    {        $this->disconnect();    }}?>

PacketBase.class.php  打包类

<?php /** * PacketBase class *  * 用以处理与c++服务端交互的sockets 包 *  * 注意：不支持宽字符 *  * @author Seven <seven@qoolu.com> *  */class PacketBase extends ContentHandler{    private $head;    private $params;    private $opcode;    /**************************construct***************************/    function __construct()    {        $num = func_num_args();        $args = func_get_args();        switch($num){                case 0:                    //do nothing 用来生成对象的                break;                case 1:                        $this->__call('__construct1', $args);                        break;                case 2:                        $this->__call('__construct2', $args);                        break;                default:                        throw new Exception();        }    }    //无参数    public function __construct1($OPCODE)    {            $this->opcode = $OPCODE;            $this->params = 0;    }    //有参数    public function __construct2($OPCODE,  $PARAMS)    {            $this->opcode = $OPCODE;            $this->params = $PARAMS;    }    //析构    function __destruct()    {        unset($this->head);        unset($this->buf);    }        //打包    public function pack()    {        $head = $this->MakeHead($this->opcode,$this->params);        return $head.$this->buf;    }    //解包    public function unpack($packet,$noHead = false)    {                $this->buf = $packet;        if (!$noHead){        $recvHead = unpack("S2hd/I2pa",$packet);        $SD = $recvHead[hd1];//SD        $this->contentlen = $recvHead[hd2];//content len        $this->opcode = $recvHead[pa1];//opcode        $this->params = $recvHead[pa2];//params                $this->pos = 12;//去除包头长度                if ($SD != 21316)        {            return false;        }        }else         {            $this->pos = 0;        }        return true;       }    public function GetOP()    {        if ($this->buf)        {            return $this->opcode;        }        return 0;    }    /************************private***************************/    //构造包头    private function MakeHead($opcode,$param)    {        return pack("SSII","SD",$this->TellPut(),$opcode,$param);    }        //用以模拟函数重载    private function __call($name, $arg)    {        return call_user_func_array(array($this, $name), $arg);    }            /***********************Uitl***************************/    //将16进制的op转成10进制    static function MakeOpcode($MAJOR_OP, $MINOR_OP)    {        return ((($MAJOR_OP & 0xffff) buf = "";        $this->contentlen = 0;        $this->pos = 0;    }    function __destruct()    {        unset($this->buf);    }        public function PutInt($int)    {        $this->buf .= pack("i",(int)$int);    }    public function PutUTF($str)    {        $l = strlen($str);        $this->buf .= pack("s",$l);        $this->buf .= $str;    }    public function PutStr($str)    {        return $this->PutUTF($str);    }            public function TellPut()    {        return strlen($this->buf);    }            /*******************************************/        public function GetInt()    {        //$cont = substr($out,$l,4);        $get = unpack("@".$this->pos."/i",$this->buf);        if (is_int($get[1])){            $this->pos += 4;            return $get[1];        }        return 0;    }      public function GetShort()    {        $get = unpack("@".$this->pos."/S",$this->buf);        if (is_int($get[1])){            $this->pos += 2;            return $get[1];        }        return 0;    }    public function GetUTF()    {        $getStrLen = $this->GetShort();                if ($getStrLen > 0)        {            $end = substr($this->buf,$this->pos,$getStrLen);            $this->pos += $getStrLen;            return $end;        }        return '';    }    /***************************/      public function GetBuf()    {        return $this->buf;    }        public function SetBuf($strBuf)    {        $this->buf = $strBuf;    }        public function ResetBuf(){        $this->buf = "";        $this->contentlen = 0;        $this->pos = 0;    }}?>

格式

struct header{int type;     // 消息类型int length;     // 消息长度}struct MSG_Q2R2DB_PAYRESULT{int serialno; int openid; char payitem[512];int billno; int zoneid;int providetype;  int coins; }调用的方法，另外需require两个php文件，一个是字节编码类，另外一个socket封装类，其实主要看字节编码类就可以了!

调用测试

public function index() {        $socketAddr = "127.0.0.1";            $socketPort = "10000";            try {                        $selfPath = dirname ( __FILE__ );            require ($selfPath . "/../Tool/Bytes.php");            $bytes = new Bytes ();                        $payitem = "sdfasdfasdfsdfsdfsdfsdfsdfsdf";            $serialno = 1;            $zoneid = 22;            $openid = "CFF47C448D4AA2069361567B6F8299C2";                        $billno = 1;            $providetype = 1;            $coins = 1;                        $headType = 10001;            $headLength = 56 + intval(strlen($payitem ));                        $headType = $bytes->integerToBytes ( intval ( $headType ) );            $headLength = $bytes->integerToBytes ( intval ( $headLength ) );            $serialno = $bytes->integerToBytes ( intval ( $serialno ) );            $zoneid = $bytes->integerToBytes ( intval ( $zoneid ) );            $openid = $bytes->getBytes( $openid  );            $payitem_len = $bytes->integerToBytes ( intval ( strlen($payitem) ) );            $payitem =  $bytes->getBytes($payitem);                        $billno = $bytes->integerToBytes ( intval ( $billno ) );            $providetype = $bytes->integerToBytes ( intval ( $providetype ) );            $coins = $bytes->integerToBytes ( intval ( $coins ) );                        $return_betys = array_merge ($headType , $headLength , $serialno , $zoneid , $openid,$payitem_len ,$payitem,$billno,$providetype,$coins);                        $msg = $bytes->toStr ($return_betys);            $strLen = strlen($msg);            $packet = pack("a{$strLen}", $msg);            $pckLen = strlen($packet);                        $socket = Socket::singleton ();            $socket->connect ( $socketAddr, $socketPort ); //连服务器                        $sockResult = $socket->sendRequest ( $packet); // 将包发送给服务器             sleep ( 3 );            $socket->disconnect (); //关闭链接        } catch ( Exception $e ) {            var_dump($e);            $this->log_error("pay order send to server".$e->getMessage());        }    }