PHP使用Socket发送字节流

例如，需要发送以下数据

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!

 1 public function index() {
 2         $socketAddr = "127.0.0.1";    
 3         $socketPort = "10000";    
 4         try {
 5             
 6             $selfPath = dirname ( __FILE__ );
 7             require ($selfPath . "/../Tool/Bytes.php");
 8             $bytes = new Bytes ();
 9             
10             $payitem = "sdfasdfasdfsdfsdfsdfsdfsdfsdf";
11             $serialno = 1;
12             $zoneid = 22;
13             $openid = "CFF47C448D4AA2069361567B6F8299C2";
14             
15             $billno = 1;
16             $providetype = 1;
17             $coins = 1;
18             
19             $headType = 10001;
20             $headLength = 56 + intval(strlen($payitem ));
21             
22             $headType = $bytes->integerToBytes ( intval ( $headType ) );
23             $headLength = $bytes->integerToBytes ( intval ( $headLength ) );
24             $serialno = $bytes->integerToBytes ( intval ( $serialno ) );
25             $zoneid = $bytes->integerToBytes ( intval ( $zoneid ) );
26             $openid = $bytes->getBytes( $openid  );
27             $payitem_len = $bytes->integerToBytes ( intval ( strlen($payitem) ) );
28             $payitem =  $bytes->getBytes($payitem);            
29             $billno = $bytes->integerToBytes ( intval ( $billno ) );
30             $providetype = $bytes->integerToBytes ( intval ( $providetype ) );
31             $coins = $bytes->integerToBytes ( intval ( $coins ) );
32             
33             $return_betys = array_merge ($headType , $headLength , $serialno , $zoneid , $openid,$payitem_len ,$payitem,$billno,$providetype,$coins);
34             
35             $msg = $bytes->toStr ($return_betys);
36             $strLen = strlen($msg);
37 
38             $packet = pack("a{$strLen}", $msg);
39             $pckLen = strlen($packet);
40             
41             $socket = Socket::singleton ();
42             $socket->connect ( $socketAddr, $socketPort ); //连服务器            
43             $sockResult = $socket->sendRequest ( $packet); // 将包发送给服务器 
44 
45             sleep ( 3 );
46             $socket->disconnect (); //关闭链接
47 
48         } catch ( Exception $e ) {
49             var_dump($e);
50             $this->log_error("pay order send to server".$e->getMessage());
51         }
52     }

 

Bytes.php  字节编码类

View Code

php

/**
 * 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;$i<$len;$i++) {
               if(ord($str[$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;
        $val |= $bytes[$position + 2] & 0xff;
        $val <<= 8;
        $val |= $bytes[$position + 1] & 0xff;
        $val <<= 8;
        $val |= $bytes[$position] & 0xff;
        return $val;
    }

    /**
     * 转换一个shor字符串为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 shortToBytes($val) {
        $byt = array();
        $byt[0] = ($val & 0xff);
        $byt[1] = ($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 << 8;
        $val |= $bytes[$position] & 0xFF;
        return $val;
    }
   
}
?>

socket.class.php  socket赋值类

View Code

  1 php
  2 define("CONNECTED", true);
  3 define("DISCONNECTED", false);
  4 
  5 /**
  6  * Socket class
  7  * 
  8  *  
  9  * @author Seven 
 10  */
 11 Class Socket
 12 {
 13     private static $instance;
 14 
 15     private $connection = null;
 16     
 17     private $connectionState = DISCONNECTED;
 18     
 19     private $defaultHost = "127.0.0.1";
 20     
 21     private $defaultPort = 80;
 22     
 23     private $defaultTimeout = 10;
 24     
 25     public  $debug = false;
 26     
 27     function __construct()
 28     {
 29         
 30     }
 31     /**
 32      * Singleton pattern. Returns the same instance to all callers
 33      *
 34      * @return Socket
 35      */
 36     public static function singleton()
 37     {
 38         if (self::$instance == null || ! self::$instance instanceof Socket)
 39         {
 40             self::$instance = new Socket();
 41            
 42         }
 43         return self::$instance;
 44     }
 45     /**
 46      * Connects to the socket with the given address and port
 47      * 
 48      * @return void
 49      */
 50     public function connect($serverHost=false, $serverPort=false, $timeOut=false)
 51     {        
 52         if($serverHost == false)
 53         {
 54             $serverHost = $this->defaultHost;
 55         }
 56         
 57         if($serverPort == false)
 58         {
 59             $serverPort = $this->defaultPort;
 60         }
 61         $this->defaultHost = $serverHost;
 62         $this->defaultPort = $serverPort;
 63         
 64         if($timeOut == false)
 65         {
 66             $timeOut = $this->defaultTimeout;
 67         }
 68         $this->connection = socket_create(AF_INET,SOCK_STREAM,SOL_TCP); 
 69         
 70         if(socket_connect($this->connection,$serverHost,$serverPort) == false)
 71         {
 72             $errorString = socket_strerror(socket_last_error($this->connection));
 73             $this->_throwError("Connecting to {$serverHost}:{$serverPort} failed.
Reason: {$errorString}");
 74         }else{
 75             $this->_throwMsg("Socket connected!");
 76         }
 77         
 78         $this->connectionState = CONNECTED;
 79     }
 80     
 81     /**
 82      * Disconnects from the server
 83      * 
 84      * @return True on succes, false if the connection was already closed
 85      */
 86     public function disconnect()
 87     {
 88         if($this->validateConnection())
 89         {
 90             socket_close($this->connection);
 91             $this->connectionState = DISCONNECTED;
 92             $this->_throwMsg("Socket disconnected!");
 93             return true;
 94         }
 95         return false;
 96     }
 97     /**
 98      * Sends a command to the server
 99      * 
100      * @return string Server response
101      */
102     public function sendRequest($command)
103     {
104         if($this->validateConnection())
105         {
106             $result = socket_write($this->connection,$command,strlen($command));
107             return $result;
108         }
109         $this->_throwError("Sending command \"{$command}\" failed.
Reason: Not connected");
110     }
111     
112     
113     
114     public function isConn()
115     {
116         return $this->connectionState;
117     }
118     
119     
120     public function getUnreadBytes()
121     {
122         
123         $info = socket_get_status($this->connection);
124         return $info['unread_bytes'];
125 
126     }
127 
128     
129     public function getConnName(&$addr, &$port)
130     {
131         if ($this->validateConnection())
132         {
133             socket_getsockname($this->connection,$addr,$port);
134         }
135     }
136     
137    
138     
139     /**
140      * Gets the server response (not multilined)
141      * 
142      * @return string Server response
143      */
144     public function getResponse()
145     {
146         $read_set = array($this->connection);
147     
148         while (($events = socket_select($read_set, $write_set = NULL, $exception_set = NULL, 0)) !== false) 
149         {
150             if ($events > 0)
151             {
152                 foreach ($read_set as $so)
153                 {
154                     if (!is_resource($so))
155                     {
156                         $this->_throwError("Receiving response from server failed.
Reason: Not connected");
157                         return false;
158                     }elseif ( ( $ret = @socket_read($so,4096,PHP_BINARY_READ) ) == false){
159                         $this->_throwError("Receiving response from server failed.
Reason: Not bytes to read");
160                         return false;
161                     }
162                     return $ret;
163                 }
164             }
165         }
166         
167         return false;
168     }
169     public function waitForResponse()
170     {
171         if($this->validateConnection())
172         {
173             return socket_read($this->connection, 2048);
174         }
175         
176         $this->_throwError("Receiving response from server failed.
Reason: Not connected");
177     return false;
178     }
179     /**
180      * Validates the connection state
181      * 
182      * @return bool
183      */
184     private function validateConnection()
185     {
186         return (is_resource($this->connection) && ($this->connectionState != DISCONNECTED));
187     }
188     /**
189      * Throws an error
190      * 
191      * @return void
192      */
193     private function _throwError($errorMessage)
194     {
195         echo "Socket error: " . $errorMessage;
196     }
197     /**
198      * Throws an message
199      * 
200      * @return void
201      */
202     private function _throwMsg($msg)
203     {
204         if ($this->debug)
205         {
206             echo "Socket message: " . $msg . "\n\n";
207         }
208     }
209     /**
210      * If there still was a connection alive, disconnect it
211      */
212     public function __destruct()
213     {
214         $this->disconnect();
215     }
216 }
217 
218 ?>

PacketBase.class.php  打包类，暂时没用到

View Code

  1 php
  2 /**
  3  * PacketBase class
  4  * 
  5  * 用以处理与c++服务端交互的sockets 包
  6  * 
  7  * 注意：不支持宽字符
  8  * 
  9  * @author Seven 
 10  * 
 11  */
 12 class PacketBase extends ContentHandler
 13 {
 14     private $head;
 15     private $params;
 16     private $opcode;
 17     /**************************construct***************************/
 18     function __construct()
 19     {
 20         $num = func_num_args();
 21         $args = func_get_args();
 22         switch($num){
 23                 case 0:
 24                     //do nothing 用来生成对象的
 25                 break;
 26                 case 1:
 27                         $this->__call('__construct1', $args);
 28                         break;
 29                 case 2:
 30                         $this->__call('__construct2', $args);
 31                         break;
 32                 default:
 33                         throw new Exception();
 34         }
 35     }
 36     //无参数
 37     public function __construct1($OPCODE)
 38     {
 39             $this->opcode = $OPCODE;
 40             $this->params = 0;
 41     }
 42     //有参数
 43     public function __construct2($OPCODE,  $PARAMS)
 44     {
 45             $this->opcode = $OPCODE;
 46             $this->params = $PARAMS;
 47     }
 48     //析构
 49     function __destruct()
 50     {
 51         unset($this->head);
 52         unset($this->buf);
 53     }
 54     
 55     //打包
 56     public function pack()
 57     {
 58         $head = $this->MakeHead($this->opcode,$this->params);
 59         return $head.$this->buf;
 60     }
 61     //解包
 62     public function unpack($packet,$noHead = false)
 63     {
 64         
 65         $this->buf = $packet;
 66         if (!$noHead){
 67         $recvHead = unpack("S2hd/I2pa",$packet);
 68         $SD = $recvHead[hd1];//SD
 69         $this->contentlen = $recvHead[hd2];//content len
 70         $this->opcode = $recvHead[pa1];//opcode
 71         $this->params = $recvHead[pa2];//params
 72         
 73         $this->pos = 12;//去除包头长度
 74         
 75         if ($SD != 21316)
 76         {
 77             return false;
 78         }
 79         }else 
 80         {
 81             $this->pos = 0;
 82         }
 83         return true;   
 84     }
 85     public function GetOP()
 86     {
 87         if ($this->buf)
 88         {
 89             return $this->opcode;
 90         }
 91         return 0;
 92     }
 93     /************************private***************************/
 94     //构造包头
 95     private function MakeHead($opcode,$param)
 96     {
 97         return pack("SSII","SD",$this->TellPut(),$opcode,$param);
 98     }
 99     
100     //用以模拟函数重载
101     private function __call($name, $arg)
102     {
103         return call_user_func_array(array($this, $name), $arg);
104     }
105     
106     
107     /***********************Uitl***************************/
108     //将16进制的op转成10进制
109     static function MakeOpcode($MAJOR_OP, $MINOR_OP)
110     {
111         return ((($MAJOR_OP & 0xffff) << 16) | ($MINOR_OP & 0xffff));
112     }
113 }
114 /**
115  * 包体类
116  * 包含了对包体的操作
117  */
118 class ContentHandler
119 {
120     public $buf;
121     public $pos;
122     public $contentlen;//use for unpack
123     
124     function __construct()
125     {
126         $this->buf = "";
127         $this->contentlen = 0;
128         $this->pos = 0;
129     }
130     function __destruct()
131     {
132         unset($this->buf);
133     }
134     
135     public function PutInt($int)
136     {
137         $this->buf .= pack("i",(int)$int);
138     }
139     public function PutUTF($str)
140     {
141         $l = strlen($str);
142         $this->buf .= pack("s",$l);
143         $this->buf .= $str;
144     }
145     public function PutStr($str)
146     {
147         return $this->PutUTF($str);
148     }
149     
150     
151     public function TellPut()
152     {
153         return strlen($this->buf);
154     }
155     
156     
157     /*******************************************/
158     
159     public function GetInt()
160     {
161         //$cont = substr($out,$l,4);
162         $get = unpack("@".$this->pos."/i",$this->buf);
163         if (is_int($get[1])){
164             $this->pos += 4;
165             return $get[1];
166         }
167         return 0;
168     }  
169     public function GetShort()
170     {
171         $get = unpack("@".$this->pos."/S",$this->buf);
172         if (is_int($get[1])){
173             $this->pos += 2;
174             return $get[1];
175         }
176         return 0;
177     }
178     public function GetUTF()
179     {
180         $getStrLen = $this->GetShort();
181         
182         if ($getStrLen > 0)
183         {
184             $end = substr($this->buf,$this->pos,$getStrLen);
185             $this->pos += $getStrLen;
186             return $end;
187         }
188         return '';
189     }
190     /***************************/
191   
192     public function GetBuf()
193     {
194         return $this->buf;
195     }
196     
197     public function SetBuf($strBuf)
198     {
199         $this->buf = $strBuf;
200     }
201     
202     public function ResetBuf(){
203         $this->buf = "";
204         $this->contentlen = 0;
205         $this->pos = 0;
206     }
207 
208 }
209 
210 ?>

 

可能你看的有点迷糊，因为我也不知道该怎么解释，有空梳理一下~