PHP code to get GooglePR value_php example

After updating the blog program today, I suddenly found that the PR bar on the Google toolbar has increased a little. However, due to buffering problems, the PR value currently displayed on the Google toolbar is not necessarily the PR value of the current page, so go to After checking, I found that the PR value of the blog site (http://mlsx.xplore.cn/) has increased to 3, but the home page (http://mlsx.xplore.cn) is still 2. Huo Huo, celebrate.

However, glemir told me this morning that his blog had already reached 3, which made me a little jealous. It also reminded me of Rachel’s blog. They are not as diligent in updating as I am, but their PR is basically not as bad as mine. From this, I came to two self-comforting conclusions:

1) Rachel’s PR is the same as mine, because his travel diary is popular, and I don’t have his handwriting.

2) glemir’s PR rose faster than mine, that’s because he used a good blog program – wordpress

Haha, laugh at yourself.

Go to the topic and paste the code to obtain Google’s PR value. I declare that I did not write it, it was just a modification. The checksum algorithm is not yet known.

Click here for the demo code

The code is as follows:

<?php
define(‘GOOGLE_MAGIC’, 0xE6359A60);
function zeroFill($a, $b)
{
$z = hexdec(80000000);
if ($z & $a)
{
$a = ($a>>1);
$a &= (~$z);
$a &#124 ;= 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<<8);
$c -= $a; $c -= $b; $c ^= (zeroFill($b,13));
$a -= $b; $a -= $c; $a ^= ( zeroFill($c,12));
$b -= $c; $b -= $a; $b ^= ($a<<16);
$c -= $a; $c -= $b; $c ^= (zeroFill($b,5));
$a -= $b; $a -= $c; $a ^= (zeroFill($c,3));
$b -= $c; $b -= $a; $b ^= ($a<<10);
$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[$k+1]<<8) +($url[$k+2]<<16) +($url[$k+3]<<24));
$b += ($url[$k+4] +($url[$k+5]<<8) +($url[$k+6]<<16) +($url[$k +7]<<24));
$c += ($url[$k+8] +($url[$k+9]<<8) +($url[$k+10]< <16)+($url[$k+11]<<24));
$mix = mix($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]<<24);
case 10: $c+=($url[ $k+9]<<16);
case 9: $c+=($url[$k+8]<<8);
case 8: $b+=($url[$k+7 ]<<24);
case 7: $b+=($url[$k+6]<<16);
case 6: $b+=($url[$k+5]<<8 );
case 5: $b+=($url[$k+4]);
case 4: $a+=($url[$k+3]<<24);
case 3 : $a+=($url[$k+2]<<16);
case 2 : $a+=($url[$k+1]<<8);
case 1 : $a+= ($url[$k+0]);
}
$mix = mix($a,$b,$c);
return $mix[2];
}

function strord($string) {
for($i=0;$i<strlen($string);$i++) {
$result[$i] = ord($string{$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 value query to obtain source code

URL: