获得Google PR值的PHP代码
今天更新blog程序后,突然发现google工具条上的PR条增加了一点,不过一直以来Google工具条上的PR因为缓冲问题,使得当前显示的PR值并不一定是目前页面的PR值,因此去查了下,发现blog站点(http://mlsx.xplore.cn/)的PR值上升到了3,但是首页 (http://mlsx.xplore.cn)还是2。霍霍,庆贺一下。
不过glemir今天上午告诉我他的blog早已经到了3,使我有点嫉妒,连带想起了Rachel的blog ,他们更新都没有我勤快,但是他们的PR基本上不必我差。由此我得出两个自我安慰的结论:
1)Rachel的PR和我的一样,是因为他的游记日志受欢迎,我没有他的手笔。
2)glemir的PR升的比我的快,那是因为他用了一个好blog程序--wordpress
哈哈,自嘲一下。
转入正题,贴上获得Google的PR值代码,声明不是我写的,只是修改,checksum的算法暂时还不知道。
演示代码点击这里
复制代码 代码如下:
define('GOOGLE_MAGIC', 0xE6359A60);
function zeroFill($a, $b)
{
$z = hexdec(80000000);
if ($z & $a)
{
$a = ($a>>1);
$a &= (~$z);
$a |= 0x40000000;
$a = ($a>>($b-1));
}
else
{
$a = ($a>>$b);
}
return $a;
}
function mix($a,$b,$c)
{
$a -= $b; $a -= $c; $a ^= (zeroFill($c,13));
$b -= $c; $b -= $a; $b ^= ($a$c -= $a; $c -= $b; $c ^= (zeroFill($b,13));
$a -= $b; $a -= $c; $a ^= (zeroFill($c,12));
$b -= $c; $b -= $a; $b ^= ($a$c -= $a; $c -= $b; $c ^= (zeroFill($b,5));
$a -= $b; $a -= $c; $a ^= (zeroFill($c,3));
$b -= $c; $b -= $a; $b ^= ($a$c -= $a; $c -= $b; $c ^= (zeroFill($b,15));
return array($a,$b,$c);
}
function GoogleCH($url, $length=null, $init=GOOGLE_MAGIC)
{
if(is_null($length))
{
$length = sizeof($url);
}
$a = $b = 0x9E3779B9;
$c = $init;
$k = 0;
$len = $length;
while($len >= 12)
{
$a += ($url[$k+0] +($url[$k+1]$b += ($url[$k+4] +($url[$k+5]$c += ($url[$k+8] +($url[$k+9]$mix = mix($a,$b,$c);
$a = $mix[0]; $b = $mix[1]; $c = $mix[2];
$k += 12;
$len -= 12;
}
$c += $length;
switch($len)
{
case 11: $c+=($url[$k+10]case 10: $c+=($url[$k+9]case 9 : $c+=($url[$k+8]case 8 : $b+=($url[$k+7]case 7 : $b+=($url[$k+6]case 6 : $b+=($url[$k+5]case 5 : $b+=($url[$k+4]);
case 4 : $a+=($url[$k+3]case 3 : $a+=($url[$k+2]case 2 : $a+=($url[$k+1]case 1 : $a+=($url[$k+0]);
}
$mix = mix($a,$b,$c);
return $mix[2];
}
function strord($string) {
for($i=0;$i
}
return $result;
}
function ReadPR($link)
{
$fp = fsockopen ("www.google.com", 80, $errno, $errstr, 30);
if (!$fp)
{
echo "$errstr ($errno)\n";
exit(1);
}
else
{
$out = "GET $link HTTP/1.0\r\n";
$out .= "Host: toolbarqueries.google.com\r\n";
$out .= "User-Agent: Mozilla/4.0 (compatible; GoogleToolbar 2.0.114.9-big; Linux 2.6)\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
do{
$line = fgets($fp, 128);
}while ($line !== "\r\n");
$data = fread($fp,8192);
fclose ($fp);
return $data;
}
}
function GetPR($url)
{
$url ='info:'.$url;
$ch = GoogleCH(strord($url));
$data = ReadPR("/search?client=navclient-auto&ch=6$ch&features=Rank&q=$url");
$rankarray = explode (':', $data);
return $rankarray[2];
}
if ( isset($_POST['url']) && $_POST['url'] !== '' )
{
echo 'PageRank: '.GetPR($_POST['url']);
}
?>
Google PR值查询 获取源代码

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