Google PageRank查询,批量查询,鉴别真假

$q=trim($_GET['q']);
$sd=(int)trim($_GET['sd']);
$t=(int)trim($_GET['t']);
if(strstr($q, " ")){
 $isulist=1;
 $ulist=explode(" ",$q);
 for($i=0;$i   $domain='';
  $domain=matchdomain($ulist[$i]);
  if($domain''){
   $q2.=$domain." ";
  }
 }
 $ulist=explode(" ",$q2);
}else{
$q2=matchdomain($q);
}

工具说明

请输入域名，如chaxun.la。
多域名查询请每行输入一个域名，域名没有个数限制！
查询二级域名pr：将查询该域名的二级域名的pr。（二级域名通过查询本站数据库教程获得，并不全面！）
鉴别真假：将鉴别该域名的pr是否是劫持其它网站的pr。

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}else{
 echo "

class PageRank{
// 7/25/2008 - Updated by Askie (http://www.pkphp.com/)
// 3/20/2008 - Updated by Roger Collins (http://www.rogercollins.com/)
// to remove graphing step

//PageRank Lookup v1.1 by HM2K (update: 31/01/07)
//based on an alogoritham found here: http://pagerank.gamesaga.net/

 //settings - host and user agent
 var $googlehost='toolbarqueries.google.com';
 var $googleua='Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5';

 //convert a string to a 32-bit integer
 function StrToNum($Str, $Check, $Magic) {
     $Int32Unit = 4294967296;  // 2^32

     $length = strlen($Str);
     for ($i = 0; $i          $Check *= $Magic;    
         //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),
         //  the result of converting to integer is undefined
         //  refer to http://www.php.net/manual/en/language.types.integer.php
         if ($Check >= $Int32Unit) {
             $Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit));
             //if the check less than -2^31
             $Check = ($Check          }
         $Check += ord($Str{$i});
     }
     return $Check;
 }

 //genearate a hash for a url
 function HashURL($String) {
     $Check1 = $this->StrToNum($String, 0x1505, 0x21);
     $Check2 = $this->StrToNum($String, 0, 0x1003F);

     $Check1 >>= 2;    
     $Check1 = (($Check1 >> 4) & 0x3FFFFC0 ) | ($Check1 & 0x3F);
     $Check1 = (($Check1 >> 4) & 0x3FFC00 ) | ($Check1 & 0x3FF);
     $Check1 = (($Check1 >> 4) & 0x3C000 ) | ($Check1 & 0x3FFF);   
    
     $T1 = (((($Check1 & 0x3C0)      $T2 = (((($Check1 & 0xFFFFC000)     
     return ($T1 | $T2);
 }

 //genearate a checksum for the hash string
 function CheckHash($Hashnum) {
     $CheckByte = 0;
     $Flag = 0;

     $HashStr = sprintf('%u', $Hashnum) ;
     $length = strlen($HashStr);
    
     for ($i = $length - 1;  $i >= 0;  $i --) {
         $Re = $HashStr{$i};
         if (1 === ($Flag % 2)) {             
             $Re += $Re;    
             $Re = (int)($Re / 10) + ($Re % 10);
         }
         $CheckByte += $Re;
         $Flag ++;   
     }

     $CheckByte %= 10;
     if (0 !== $CheckByte) {
         $CheckByte = 10 - $CheckByte;
         if (1 === ($Flag % 2) ) {
             if (1 === ($CheckByte % 2)) {
                 $CheckByte += 9;
             }
             $CheckByte >>= 1;
         }
     }

     return '7'.$CheckByte.$HashStr;
 }

 //return the pagerank checksum hash
 function getch($url) { return $this->CheckHash($this->HashURL($url)); }

 //return the pagerank figure
 function ch($url){
  $urlinfo=parse_url($url);
     $start=$urlinfo["scheme"]""?strlen($urlinfo["scheme"]."://"):0;
  $url=substr($url,$start);
  
  $pr = 0;    // default return
     $ch = $this->getch($url);
  return $ch;
 }
}

$q=trim($_GET['q']);
//for($i=0;$i $pagecode = @file_get_contents("http://www.google.cn/search?q=info:".$q);
 //   if($pagecode){
// break;
// }
//}
    if($pagecode){
  preg_match('/(.*?)//', $pagecode, $googlepr);
  if($q==$googlepr[1] or strstr($googlepr[1], '.'.$q) or strstr($q, '.'.$googlepr[1])){
   echo '√';
  }elseif($q$googlepr[1] and $googlepr[1]''){
   echo '×，此网站可能劫持'.$googlepr[1].'的PR！';
  }elseif($googlepr[1]==''){
   echo '在Google搜索info:'.$q.'无信息！';
  }
 }else{
 echo "获取Google信息失败！"; 
 }