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    ▪在线查询Google PR值的PHP代码      本节内容： 查询Google PR值 例子：   代码示例: <?php /** * 获取Google PR值 * by www. */ define('GOOGLE_MAGIC', 0xE6359A60); function zeroFill($a, $b) { $z = hexdec(80000000); if ($z & $a) { $a = ($a>>.........
    ▪php获取谷歌PR值算法与php查询PR值的代码      本节内容： php查询网站PR值的方法   例子：   代码示例: <?php /* *功能:对URL进行编码 *参数说明:$web_url 网站URL，不包含"http://",例如 */ function HashURL(/blog_article/$url/index.html){ $SEED = "Mining PageRank is AGAINS.........
    ▪php获取网站的google pr值      本节内容： PHP获取网站的PR值 例子：   代码示例: <?php /** * php代码取得网站的PR值 * by www. */ $googlehost="toolbarqueries.google.com"; $googleua="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Geck.........

[1]在线查询Google PR值的PHP代码
    来源: 互联网  发布时间: 2013-12-24

本节内容：
查询Google PR值

例子：
 

代码示例:

<?php
/**
* 获取Google PR值
* by www.
*/
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<<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']);
}
?>
<html><title>Google PR值查询</title>
<body>Google PR值查询 <a href='/blog_article/pr.html' >获取源代码</a>

<form action='' method='post'><br />
URL:<input name='url' value='http://' type='text' size=40>
<input name='submit' type='submit' value='Get PR'>
</form></body></html>


    
[2]php获取谷歌PR值算法与php查询PR值的代码
    来源: 互联网  发布时间: 2013-12-24

本节内容：
php查询网站PR值的方法
 
例子：
 

代码示例:
<?php
/*
*功能:对URL进行编码
*参数说明:$web_url 网站URL，不包含"http://",例如
*/
function HashURL(/blog_article/$url/index.html){
$SEED = "Mining PageRank is AGAINST GOOGLE'S TERMS OF SERVICE. Yes, I'm talking to you, scammer.";
$Result = 0x01020345;
for ($i=0; $i<strlen($url); $i++)
{
$Result ^= ord($SEED{$i%87}) ^ ord($url{$i});
$Result = (($Result >> 23) & 0x1FF) | $Result << 9;
}
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(/blog_article/$domain/index.html);
$fcontents = file_get_contents("$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。


    
[3]php获取网站的google pr值
    来源: 互联网  发布时间: 2013-12-24

本节内容：
PHP获取网站的PR值

例子：
 

代码示例:
<?php
/**
* php代码取得网站的PR值
* by www.
*/
$googlehost="toolbarqueries.google.com";
$googleua="Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5";
echo getpr('http://www.');
//convert a string to a 32-bit integer
function StrToNum($Str, $Check, $Magic) {
$Int32Unit = 4294967296; // 2^32
$length = strlen($Str);
for ($i = 0; $i < $length; $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 < -2147483648) ? ($Check + $Int32Unit) : $Check;
}
$Check += ord($Str{$i});
}
return $Check;
}
//genearate a hash for a url
function HashURL(/blog_article/$String/index.html) {
$Check1 = StrToNum($String, 0&times;1505, 0&times;21);
$Check2 = StrToNum($String, 0, 0&times;1003F);
$Check1 >>= 2;
$Check1 = (($Check1 >> 4) & 0&times;3FFFFC0 ) | ($Check1 & 0&times;3F);
$Check1 = (($Check1 >> 4) & 0&times;3FFC00 ) | ($Check1 & 0&times;3FF);
$Check1 = (($Check1 >> 4) & 0&times;3C000 ) | ($Check1 & 0&times;3FFF);
$T1 = (((($Check1 & 0&times;3C0) << 4) | ($Check1 & 0&times;3C)) <<2 ) | ($Check2 & 0xF0F );
$T2 = (((($Check1 & 0xFFFFC000) << 4) | ($Check1 & 0&times;3C00)) << 0xA) | ($Check2 & 0xF0F0000 );
return ($T1 | $T2);
}
//genearate a checksum for the hash string
function CheckHash($Hashnum) {
$CheckByte = 0;
$Flag = 0;
$HashStr = sprintf()(&lsquo;%u&rsquo;, $Hashnum) ;
$length = strlen($HashStr);
for ($i = $length - 1; $i >= 0; $i &ndash;) {
$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 CheckHash(HashURL(/blog_article/$url/index.html)); }
//return the pagerank figure
function getpr($url) {
global $googlehost,$googleua;
$pr = 0; // default return
$ch = getch($url);
$fp = fsockopen($googlehost, 80, $errno, $errstr, 30);
if ($fp) {
$out = "GET /search?client=navclient-auto&ch=$ch&features=Rank&q=info:$url HTTP/1.1\r\n";
//echo &ldquo;<pre>$out</pre>\n&rdquo;; //debug only
$out .= &ldquo;User-Agent: $googleua\r\n&rdquo;;
$out .= &ldquo;Host: $googlehost\r\n&rdquo;;
$out .= &ldquo;Connection: Close\r\n\r\n&rdquo;;
fwrite($fp, $out);
//$pagerank = substr(fgets($fp, 128), 4); //debug only
//echo $pagerank; //debug only
while (!feof($fp)) {
$data = fgets($fp, 128);
//echo $data;
$pos = strpos($data, &ldquo;Rank_&rdquo;);
if($pos === false){} else{
$pr=substr($data, $pos + 9);
$pr=trim($pr);
$pr=str_replace()(&ldquo;\n&rdquo;,&rdquo;,$pr);
return $pr;
}
}
//else { echo &ldquo;$errstr ($errno) \n&rdquo;; } //debug only
fclose($fp);
}
return $pr;
}
?>

    
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