//получить значение PageRank
$google = new GooglePR;
$googlepr = $google->getPagerank ($url);
 
//получить значение ТИЦ
$yandex = new YandexCY;
$yandexcy = $yandex->getCY ($url);

//Определение ТИЦ
class YandexCY
{
  function getCY ($url)
  {
    $response = @file ("http://bar-navig.yandex.ru/u?ver=2&url=$url&show=1");
 
    for ($i=0; $i<sizeof($response); $i++)
      {
        $num_found = preg_match('/value="(\d+)"/', $response[$i], $matches);
        if ($num_found > 0) {
          return $matches[1];
        }
      }
  }
}

//Определение PR
class GooglePR {
 
function checksum ($url, $length = null, $init = 0xE6359A60) {
            if (is_null($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 = $this->mix($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 = $this->mix($a, $b, $c);
            return $mix[2];
        }
 
        function mix ($a, $b, $c) {
            $a -= $b; $a -= $c; $this->to_int_32($a); $a = (int)($a ^ ($this->zero_fill($c, 13)));
            $b -= $c; $b -= $a; $this->to_int_32($b); $b = (int)($b ^ ($a << 8));
            $c -= $a; $c -= $b; $this->to_int_32($c); $c = (int)($c ^ ($this->zero_fill($b, 13)));
            $a -= $b; $a -= $c; $this->to_int_32($a); $a = (int)($a ^ ($this->zero_fill($c, 12)));
            $b -= $c; $b -= $a; $this->to_int_32($b); $b = (int)($b ^ ($a << 16));
            $c -= $a; $c -= $b; $this->to_int_32($c); $c = (int)($c ^ ($this->zero_fill($b, 5)));
            $a -= $b; $a -= $c; $this->to_int_32($a); $a = (int)($a ^ ($this->zero_fill($c, 3)));
            $b -= $c; $b -= $a; $this->to_int_32($b); $b = (int)($b ^ ($a << 10));
            $c -= $a; $c -= $b; $this->to_int_32($c); $c = (int)($c ^ ($this->zero_fill($b, 15)));
            return array($a,$b,$c);
        }
 
        function zero_fill ($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 to_int_32 (&$x) {
            $z = hexdec(80000000);
            $y = (int) $x;
            if($y ==- $z && $x <- $z){
                $y = (int) ((-1) * $x);
                $y = (-1) * $y;
            }
            $x = $y;
        }
 
function getPagerank ($full_url) {
 
        $ch_url = "info:$full_url";
 
            $checksum = $this->checksum($this->strord($ch_url));
 
            $url = "http://www.google.com/search?client=navclient-auto&ch=6$checksum&features=Rank&q=$ch_url";
 
            $data = @file_get_contents($url);
 
            // Data is 'Rank_1:1:3', page rank is the last digit or '3'
            preg_match('#Rank_[0-9]:[0-9]:([0-9]+){1,}#si', $data, $p);
            $value = @($p[1]) ? $p[1] : 0;
            return $value;
        }
 
        function strord ($string) {
            for($i = 0; $i < strlen($string); $i++) {
                $result[$i] = ord($string{$i});
            }
            return $result;
        }
}