- /*
- *功能:对URL进行编码
- *参数说明:$web_url 网站URL，不包含"http://",例如jbxue.com
- */
- function HashURL($url){
- $SEED = "Mining PageRank is AGAINST GOOGLE'S TERMS OF SERVICE. Yes, I'm talking to you, scammer.";
- $Result = 0x01020345;
- for ($i=0; $i{
- $Result ^= ord($SEED{$i%87}) ^ ord($url{$i});
- $Result = (($Result >> 23) & 0x1FF) | $Result }
- return sprintf("8%x", $Result);
- }
- /*
- *功能:获取pagerank
- *参数说明:$domain 网站域名，不包含"http://",
- */
- function pagerank($domain)
- {
- $StartURL = "http://toolbarqueries.google.com/tbr?client=navclient-auto&features=Rank:&q=info:";
- // $StartURL = "http://www.google.com/search?client=navclient-auto&features=Rank:&q=info:";
- $GoogleURL = $StartURL.$domain. '&ch='.HashURL($domain);
- $fcontents = file_get_contents("$GoogleURL");
- $pagerank = substr($fcontents,9);
- if (!$pagerank) return "0";else return $pagerank;
- }
-
说明：
PR有时查询有点慢，很多的PR查询站都做了各种缓存的，一般情况下，PR值不会改变，除非谷歌PR更新。 | 
