- <?php
- //这些是核心部分,可以写到一个单独的php里,用的时候直接include就可以
- define('__QQWRY__' , dirname(__FILE__)."/qqwry.dat");
- class QQWry{
- var $StartIP=0;
- var $EndIP=0;
- var $Country='';
- var $Local='';
- var $CountryFlag=0;
- var $fp;
- var $FirstStartIp=0;
- var $LastStartIp=0;
- var $EndIpOff=0 ;
- function getStartIp($RecNo){
- $offset=$this->FirstStartIp+$RecNo * 7 ;
- @fseek($this->fp,$offset,SEEK_SET) ;
- $buf=fread($this->fp ,7) ;
- $this->EndIpOff=ord($buf[4]) + (ord($buf[5])*256) + (ord($buf[6])* 256*256);
- $this->StartIp=ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])*256*256) + (ord($buf[3])*256*256*256);
- return $this->StartIp;
- }
- function getEndIp(){
- @fseek ( $this->fp , $this->EndIpOff , SEEK_SET ) ;
- $buf=fread ( $this->fp , 5 ) ;
- $this->EndIp=ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])*256*256) + (ord($buf[3])*256*256*256);
- $this->CountryFlag=ord ( $buf[4] ) ;
- return $this->EndIp ;
- }
- function getCountry(){
- switch ( $this->CountryFlag ) {
- case 1:
- case 2:
- $this->Country=$this->getFlagStr ( $this->EndIpOff+4) ;
- //echo sprintf('EndIpOffset=(%x)',$this->EndIpOff );
- $this->Local=( 1 == $this->CountryFlag )? '' : $this->getFlagStr ( $this->EndIpOff+8);
- break ;
- default :
- $this->Country=$this->getFlagStr ($this->EndIpOff+4) ;
- $this->Local=$this->getFlagStr ( ftell ( $this->fp )) ;
- }
- }
- function getFlagStr ($offset){
- $flag=0 ;
- while(1){
- @fseek($this->fp ,$offset,SEEK_SET) ;
- $flag=ord(fgetc($this->fp ) ) ;
- if ( $flag == 1 || $flag == 2 ) {
- $buf=fread ($this->fp , 3 ) ;
- if ($flag==2){
- $this->CountryFlag=2;
- $this->EndIpOff=$offset - 4 ;
- }
- $offset=ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])* 256*256);
- }
- else{
- break ;
- }
- }
- if($offset<12)
- return '';
- @fseek($this->fp , $offset , SEEK_SET ) ;
- return $this->getStr();
- }
- function getStr ( )
- {
- $str='' ;
- while ( 1 ) {
- $c=fgetc ( $this->fp ) ;
- if(ord($c[0])== 0 )
- break ;
- $str.= $c ;
- }
- return $str ;
- }
- function qqwry ($dotip='') {
- if( !is_string($dotip) || $dotip==''){return;}
- if(preg_match("/^127/",$dotip)){$this->Country="本地网络";return ;}
- elseif(preg_match("/^192/",$dotip)) {$this->Country="局域网";return ;}
- $nRet;
- $ip=$this->IpToInt ( $dotip );
- $this->fp= fopen(__QQWRY__, "rb");
- if ($this->fp == NULL) {
- $szLocal= "OpenFileError";
- return 1;
- }
- @fseek ( $this->fp , 0 , SEEK_SET ) ;
- $buf=fread ( $this->fp , 8 ) ;
- $this->FirstStartIp=ord($buf[0]) + (ord($buf[1])*256) + (ord($buf[2])*256*256) + (ord($buf[3])*256*256*256);
- $this->LastStartIp=ord($buf[4]) + (ord($buf[5])*256) + (ord($buf[6])*256*256) + (ord($buf[7])*256*256*256);
- $RecordCount= floor( ( $this->LastStartIp - $this->FirstStartIp ) / 7);
- if ($RecordCount <= 1){
- $this->Country="FileDataError";
- fclose($this->fp) ;
- return 2 ;
- }
- $RangB= 0;
- $RangE= $RecordCount;
- while ($RangB < $RangE-1)
- {
- $RecNo= floor(($RangB + $RangE) / 2);
- $this->getStartIp ( $RecNo ) ;
- if ( $ip == $this->StartIp )
- {
- $RangB=$RecNo ;
- break ;
- }
- if ($ip>$this->StartIp)
- $RangB= $RecNo;
- else
- $RangE= $RecNo;
- }
- $this->getStartIp ( $RangB ) ;
- $this->getEndIp ( ) ;
- if ( ( $this->StartIp <= $ip ) && ( $this->EndIp >= $ip ) ){
- $nRet=0 ;
- $this->getCountry ( ) ;
- $this->Local=str_replace("(我们一定要解放台湾!!!)", "", $this->Local);
- }
- else{
- $nRet=3 ;
- $this->Country='未知' ;
- $this->Local='' ;
- }
- fclose ( $this->fp );
- return $nRet ;
- }
- function IpToInt($Ip) {
- $array=explode('.',$Ip);
- $Int=($array[0] * 256*256*256) + ($array[1]*256*256) + ($array[2]*256) + $array[3];
- return $Int;
- }
- }
- function GetIP(){//获取IP
- return $_SERVER[REMOTE_ADDR]?$_SERVER[REMOTE_ADDR]:$GLOBALS[HTTP_SERVER_VARS][REMOTE_ADDR];
- }
- ?>
- //该片段来自于http://www.codesnippet.cn/detail/250220132203.html
来源: http://www.codesnippet.cn/detail/250220132203.html