php google pr 值代码

下面的代码是一段获取 google pr值，并且还支持js调用显示哦。

// require dirname(__FILE__) . '/MooPHP/MooPHP.php';
 define('GMAG', 0xE6359A60);

//note 获取和处理可能要取得的变量
//$site = MooGetGPC('site', 'string');
$host ='';
$style = isset($_GET['style'])?$_GET['style']:1;
$host = $_SERVER['HTTP_HOST'];
$site = str_replace('http://', '', $host);

if($site) {
 $pr = getPR($site);
 switch( $style )
 {
  case 3:
   echo 'document.write("");';
   break;
  case 2:
   echo 'document.write("");';
   break;
  case 1:
   
   echo 'document.write("");';
   break;
  default:
   echo 'document.write("");';
   break;
  }
  
}
else
{
 echo '有问题';
}

// include MooTemplate("pr_index");

//note 处理获得pr值的函数

// url get method macro.
define('G_PR_GET_TYPE_FILE', 1);    // use fopen() function
define('G_PR_GET_TYPE_SOCKET', 2);  // use standard fsocketopen function

// main function to be called
function getPR($_url,$gettype=G_PR_GET_TYPE_SOCKET){
    $url = 'info:'.$_url;
    $ch = GCH(strord($url));
    $ch = NewGCH($ch);
    $url=str_replace("_","%5F",'info:'.urlencode($_url));
    $googlePRUrl =
        "http://64.233.161.104/search?client=navclient-auto&ch=6"
        .$ch."&ie=UTF-8&oe=UTF-8&features=Rank&q=".$url;
    $pr_str = retrieveURLContent($googlePRUrl,$gettype);
    return intval(substr($pr_str,strrpos($pr_str, ":")+1));
}

//unsigned shift right
function zeroFill($a, $b){
    $z = hexdec('8'.implode('',array_fill(0,PHP_INT_SIZE*2-1,'0')));
    if ($z & $a){
        $a = ($a>>1);
        $a &= (~$z);
        $a |= hexdec('4'.implode('',array_fill(0,PHP_INT_SIZE*2-1,'0')));
        $a = ($a>>($b-1));
    }
    else{
        $a = ($a>>$b);
    }
    return $a;
}

// discard bits beyonds 32 bit.
function trunkbitForce32bit($n){
    if(PHP_INT_SIZE         settype($n,'float');
        if ( $n         return $n;
    }
    else{
        $clearbit = '';
        for($i=0;$i             $clearbit .= '00';
        }
        for($i=0;$i             $clearbit .= 'ff';
        }
        return ($n & hexdec($clearbit));
    }
}

function bigxor($m,$n){
    //if(function_exists('gmp_init')){
    //  return floatval(gmp_strval(gmp_xor($m,$n)));
    //}
    //else{
        return $m ^ $n;
    //}
}

function mix($a,$b,$c){

    $a = trunkbitForce32bit($a);
    $b = trunkbitForce32bit($b);
    $c = trunkbitForce32bit($c);

    $a -= $b; $a = trunkbitForce32bit($a);
    $a -= $c; $a = trunkbitForce32bit($a);
    $a = bigxor($a,(zeroFill($c,13))); $a = trunkbitForce32bit($a);

    $b -= $c; $b = trunkbitForce32bit($b);
    $b -= $a; $b = trunkbitForce32bit($b);
    $b = bigxor($b,trunkbitForce32bit($a

    $c -= $a; $c = trunkbitForce32bit($c);
    $c -= $b; $c = trunkbitForce32bit($c);
    $c = bigxor($c,(zeroFill($b,13))); $c = trunkbitForce32bit($c);

    $a -= $b;$a = trunkbitForce32bit($a);
    $a -= $c;$a = trunkbitForce32bit($a);
    $a = bigxor($a,(zeroFill($c,12)));$a = trunkbitForce32bit($a);

    $b -= $c;$b = trunkbitForce32bit($b);
    $b -= $a;$b = trunkbitForce32bit($b);
    $b = bigxor($b,trunkbitForce32bit($a

    $c -= $a; $c = trunkbitForce32bit($c);
    $c -= $b; $c = trunkbitForce32bit($c);
    $c = bigxor($c,(zeroFill($b,5))); $c = trunkbitForce32bit($c);

    $a -= $b;$a = trunkbitForce32bit($a);
    $a -= $c;$a = trunkbitForce32bit($a);
    $a = bigxor($a,(zeroFill($c,3)));$a = trunkbitForce32bit($a);

    $b -= $c;$b = trunkbitForce32bit($b);
    $b -= $a;$b = trunkbitForce32bit($b);
    $b = bigxor($b,trunkbitForce32bit($a

    $c -= $a; $c = trunkbitForce32bit($c);
    $c -= $b; $c = trunkbitForce32bit($c);
    $c = bigxor($c,(zeroFill($b,15))); $c = trunkbitForce32bit($c);

    return array($a,$b,$c);
}

function NewGCH($ch){
    $ch = ( trunkbitForce32bit( ( $ch / 7 )             ( ( myfmod( $ch,13 ) ) & 7 ) );

    $prbuf = array();
    $prbuf[0] = $ch;
    for( $i = 1; $i     {
      $prbuf[$i] = $prbuf[$i-1] - 9;
    }

    $ch = GCH( c32to8bit( $prbuf ) );

    return $ch;
}
function myfmod($x,$y){
    $i = floor( $x / $y );
    return ( $x - $i * $y );
}
function c32to8bit($arr32){
    $arr8 = array();

    for( $i = 0; $i         for( $bitOrder = $i * 4;
                $bitOrder         $arr8[$bitOrder] = $arr32[$i] & 255;
        $arr32[$i] = zeroFill( $arr32[$i], 8 );
      }
    }

    return $arr8;
}

function GCH($url, $length=null){
    if(is_null($length)) {
        $length = sizeof($url);
    }
    $init = 0xE6359A60;

    $a = 0x9E3779B9;
    $b = 0x9E3779B9;
    $c = 0xE6359A60;
    $k = 0;
    $len = $length;
    $mixo = array();

    while( $len >= 12 ){
        $a += ($url[$k+0] +trunkbitForce32bit($url[$k+1]               +trunkbitForce32bit($url[$k+2]               +trunkbitForce32bit($url[$k+3]         $b += ($url[$k+4] +trunkbitForce32bit($url[$k+5]               +trunkbitForce32bit($url[$k+6]               +trunkbitForce32bit($url[$k+7]         $c += ($url[$k+8] +trunkbitForce32bit($url[$k+9]               +trunkbitForce32bit($url[$k+10]               +trunkbitForce32bit($url[$k+11]         $mixo = mix($a,$b,$c);
        $a = $mixo[0]; $b = $mixo[1]; $c = $mixo[2];
        $k += 12;
        $len -= 12;
    }

    $c += $length;

    switch( $len ) {
        case 11:
        $c += trunkbitForce32bit($url[$k+10]

        case 10:
        $c+=trunkbitForce32bit($url[$k+9]

        case 9 :
        $c+=trunkbitForce32bit($url[$k+8]

        case 8 :
        $b+=trunkbitForce32bit($url[$k+7]

        case 7 :
        $b+=trunkbitForce32bit($url[$k+6]

        case 6 :
        $b+=trunkbitForce32bit($url[$k+5]

        case 5 :
        $b+=trunkbitForce32bit($url[$k+4]);

        case 4 :
        $a+=trunkbitForce32bit($url[$k+3]

        case 3 :
        $a+=trunkbitForce32bit($url[$k+2]

        case 2 :
        $a+=trunkbitForce32bit($url[$k+1]

        case 1 :
        $a+=trunkbitForce32bit($url[$k+0]);
    }

    $mixo = mix( $a, $b, $c );

    $mixo[2] = trunkbitForce32bit($mixo[2]);

    if( $mixo[2]         return (
            hexdec('1'.
                implode('',
                    array_fill(0,PHP_INT_SIZE*2,'0')))
            + $mixo[2] );
    }
    else{
        return $mixo[2];
    }
}

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

function retrieveURLContent($url,$gettype){
    switch($gettype){
        case G_PR_GET_TYPE_FILE:
            return retrieveURLContentByFile($url);
            break;
        default:
            return retrieveURLContentBySocket($url);
            break;
    }
}

function retrieveURLContentByFile($url){
    $fd = @fopen($url,"r");
    if(!$fd){
        return false;
    }
    $result = "";
    while($buffer = fgets($fd, 4096)) {
      $result .= $buffer;
    }
    fclose($fd);
    return $result;
}

function retrieveURLContentBySocket($url,
                                    $host="",
                                    $port=80,
                                    $timeout=30){
    if($host == ""){
        if(!($pos = strpos($url,'://'))){
            return false;
        }
        $host = substr( $url,
                        $pos+3,
                        strpos($url,'/',$pos+3) - $pos - 3);
        $uri = substr($url,strpos($url,'/',$pos+3));
    }
    else{
        $uri = $url;
    }

    $request =  "GET ".$uri." HTTP/1.0rn"
               ."Host: ".$host."rn"
               ."Accept: */*rn"
               ."User-Agent: ZealGetrn"
               ."rn";
    $sHnd = @fsockopen ($host, $port, $errno, $errstr, $timeout);
    if(!$sHnd){
        return false;
    }

    @fputs ($sHnd, $request);

    // Get source
    $result = "";
    while (!feof($sHnd)){
        $result .= fgets($sHnd,4096);
    }
    fclose($sHnd);

    $headerend = strpos($result,"rnrn");
    if (is_bool($headerend))
    {
        return $result;
    }
    else{
        return substr($result,$headerend+4);
    }
}

站长推荐：

http://tool.111cn.net/pr/pr.php可以查询你网站的pr值并且还可以调用pr在你网站显示哦。