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获取Google官方PR的php源程序
 
 
修改时间:[2010/07/16 11:22]    阅读次数:[1531]    发表者:[起缘]
 

sweet..

i hacked it further and put a form field in there so you can punch the url to be checked into the form.

im only a newbie php whiz so any if any of the pros see anything that needs some attention, drop a line.

look forward to see how this works for everyone.

PHP Code:

<?php

if(isset($_GET['getpr'])){


// Edit this to your website url:
$myWebSite = ($_POST['url']);

define('GMAG', 0xE6359A60);

//unsigned shift right
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<<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
GCH($url, $length=null, $init=GMAG) {
if(
is_null($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) /* all the case statements fall through */
{
case
11: $c+=($url[$k+10]<<24);
case
10: $c+=($url[$k+9]<<16);
case
9 : $c+=($url[$k+8]<<8);
/* the first byte of c is reserved for the length */
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]);
/* case 0: nothing left to add */
}
$mix = mix($a,$b,$c);
/*-------------------------------------------- report the result */
return $mix[2];
}

//converts a string into an array of integers containing the numeric value of the char
function strord($string) {
for(
$i=0;$i<strlen($string);$i++) {
$result[$i] = ord($string{$i});
}
return
$result;
}

function
getPR($_url) {
$url = 'info:'.$_url;
$ch = GCH(strord($url));
$url='info:'.urlencode($_url);
$pr = file("http://www.google.com/search?client=navclient-auto&ch=6$ch&ie=UTF-8&oe=UTF-8&features=Rank&q=$url");
$pr_str = implode("", $pr);
return
substr($pr_str,strrpos($pr_str, ":")+1);
}

echo
"<br>The PR of ".$myWebSite." is: ".getPR($myWebSite);
echo
"<br><a href='$PHP_SELF'>Click here to Check another URL</a>";

}else{

    echo
"<b>Enter URL to check PR (include http://)</b>";
    echo
"<form action='$PHP_SELF?getpr=1' method='post'>";
    echo
"URL? : <input name='url' value=''><br>";
    echo
"<input type='submit' name='Submit' value='Send'>";
    echo
"</form>";
}
?>

 
 
 
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