类：class_qqwry.php
define(‘__QQWRY__’ , ’data/QQWry.dat’);<br /> //echo __QQWRY__;<br /> //声明：此类非我写，类的原作者已无从查找，我只是加以利用罢了<br /> class QQWry{<br />     var $StartIP = 0;<br />     var $EndIP = 0;<br />     var $Country = ”;<br />     var $Local = ”;</p> <p>    var $CountryFlag = 0; // 标识 Country位置 <br />      // 0×01,随后3字节为Country偏移,没有Local <br />      // 0×02,随后3字节为Country偏移，接着是Local <br />      // 其他,Country,Local,Local有类似的压缩。可能多重引用。 <br />     var $fp; </p> <p>    var $FirstStartIp = 0; <br />     var $LastStartIp = 0; <br />     var $EndIpOff = 0;</p> <p>    function getStartIp($RecNo){<br />         $offset = $this->FirstStartIp+$RecNo*7;<br />         @fseek($this->fp,$offset,SEEK_SET);<br />         $buf = fread($this->fp,7);<br />         $this->EndIpOff = ord($buf[4]) + (ord($buf[5])*256) + (ord($buf[6])* 256*256);<br />         $this->StartIp = ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])*256*256) + (ord($buf[3])*256*256*256);<br />         return $this->StartIp;<br />     }</p> <p>    function getEndIp(){<br />         @fseek ($this->fp,$this->EndIpOff,SEEK_SET);<br />         $buf = fread ($this->fp,5);<br />         $this->EndIp = ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])*256*256) + (ord($buf[3])*256*256*256); <br />         $this->CountryFlag = ord($buf[4]);<br />         return $this->EndIp;<br />     }</p> <p>    function getCountry(){ <br />         switch ($this->CountryFlag){ <br />             case 1:<br />             case 2:<br />             $this->Country=$this->getFlagStr( $this->EndIpOff+4);<br />             //echo sprintf(‘EndIpOffset=(%x)’,$this->EndIpOff); <br />             $this->Local=(1 == $this->CountryFlag)? ” : $this->getFlagStr ($this->EndIpOff+8); <br />             break;<br />             default:<br />             $this->Country=$this->getFlagStr ($this->EndIpOff+4);<br />             $this->Local=$this->getFlagStr ( ftell ( $this->fp ));<br />         }<br />     }</p> <p>    function getFlagStr ($offset){<br />         $flag=0;<br />         while(1){<br />             @fseek($this->fp ,$offset,SEEK_SET);<br />             $flag = ord(fgetc($this->fp));<br />             if ($flag == 1 || $flag == 2) { <br />                 $buf = fread($this->fp,3);<br />                 if ($flag == 2){ <br />                     $this->CountryFlag = 2; <br />                     $this->EndIpOff = $offset - 4;<br />                 }<br />                 $offset = ord($buf[0])+(ord($buf[1])*256)+(ord($buf[2])* 256*256);<br />             }<br />             else{<br />                 break;<br />             }<br />         }<br />         if($offset<12)<br />         return ”;<br />         @fseek($this->fp,$offset,SEEK_SET);</p> <p>        return $this->getStr();<br />     }</p> <p>    function getStr(){<br />         $str = ”;<br />         while(1){<br />             $c=fgetc($this->fp);<br />             //echo ”$cn”;</p> <p>            if(ord($c[0])== 0) <br />             break; <br />             $str .= $c; <br />         }<br />         //echo ”$str n”;<br />         return $str;<br />     }</p> <p>    function qqwry($dotip = ”){<br />         if(!$dotip)return;<br />         if(ereg(“^(127)”,$dotip)){$this->Country=本地网络;return;}<br />         elseif(ereg(“^(192)”,$dotip)){$this->Country=局域网;return;}</p> <p>        $nRet;<br />         $ip = $this->IpToInt ($dotip);<br />         $this->fp = fopen(__QQWRY__,”rb”);<br />         if ($this->fp == NULL) {<br />             $szLocal= ”OpenFileError”;<br />             return 1;<br />         }</p> <p>        @fseek ($this->fp,0,SEEK_SET);<br />         $buf = fread($this->fp,8);<br />         $this->FirstStartIp = ord($buf[0])+(ord($buf[1])*256)+(ord($buf[2])*256*<br /> 256)+(ord($buf[3])*256*256*256);<br />         $this->LastStartIp = ord($buf[4])+(ord($buf[5])*256)+(ord($buf[6])*256*256)+(ord($buf[7])*256*256*256);</p> <p>        $RecordCount = floor(($this->LastStartIp - $this->FirstStartIp)/7); <br />         if($RecordCount <= 1){ <br />             $this->Country = ”FileDataError”; <br />             fclose($this->fp);<br />             return 2;<br />         }</p> <p>        $RangB = 0; <br />         $RangE = $RecordCount; <br />         while($RangB<$RangE-1){<br />             $RecNo = floor(($RangB + $RangE)/2); <br />             $this->getStartIp ($RecNo);</p> <p>            if($ip == $this->StartIp){ <br />                 $RangB=$RecNo;<br />                 break;<br />             }<br />             if($ip>$this->StartIp) <br />             $RangB= $RecNo; <br />             else <br />             $RangE= $RecNo; <br />         }<br />         $this->getStartIp($RangB);<br />         $this->getEndIp();</p> <p>        if(($this->StartIp <= $ip) && ($this->EndIp >= $ip)){ <br />             $nRet = 0;<br />             $this->getCountry();<br />             $this->Local = str_replace(“（一定要解放台湾！）”, ”",$this->Local); <br />         }<br />         else{ <br />             $nRet = 3;<br />             $this->Country = ’未知’;<br />             $this->Local = ”;<br />         }<br />         fclose($this->fp); <br />         $this->Country = preg_replace(“/(CZ88.NET)|(纯真网络)/”,”",$this->Country);<br />         $this->Local = preg_replace(“/(CZ88.NET)|(纯真网络)/”,”",$this->Local);<br />         //////////////看看 $nRet在上面的值是什么0和3，于是将下面的行注释掉<br />         //$nRet = iconv(“GB2312″,”UTF-8″,$nRet);<br />         return $nRet;<br />         <br />         //return ”$this->Country $this->Local”;#如此直接返回位置和国家便可以了 <br />     }</p> <p>    function IpToInt($Ip){<br />         $array = explode(‘.’,$Ip);<br />         $Int = ($array[0] * 256*256*256) + ($array[1]*256*256) + ($array[2]*256) + $array[3];<br />         return $Int;<br />     }<br /> }</p> <p>function GetIP(){<br />     return $_SERVER[REMOTE_ADDR]?$_SERVER[REMOTE_ADDR]:$GLOBALS[HTTP_SERVER_VARS][REMOTE_ADDR];<br /> }</p> <p>

使用方法：

<br /> require(‘class_qqwry.php’);<br /> $QQWry=new QQWry;<br /> $ip = $_SERVER['REMOTE_ADDR']; <br /> $ipinfo = $QQWry->QQWry($ip); <br /> echo ”您的IP是：”.$ip.”     地理位置：”.iconv(“gb2312″,”utf-8″,$QQWry->Country).iconv(“gb2312″,”utf-8″,$QQWry->Local);<br />

Popularity: 10%