Pagerank PHP Öğrenme Kodu

</p> 
  <form action="" method="post"> 
  <table align="center" style="width: 359px; height: 81px;border: 2px  dashed #000066;"> 
  <tr> 
  <td  style="background-color: #DDFFFF;width: 57px">URL:</td> 
  <td  style="background-color: #DDFFFF;width: 112px"> 
  			<input name="url" type="text" style="width: 289px; height: 23px" value="http://"></td> 
  </tr> 
  <tr> 
  <td  style="width: 57px"> </td> 
  <td style="width: 112px"> 
  		<input name="Submit1" style="width: 133px; height: 29px;" type="submit" value="Find Page Rank"></td> 
  </tr> 
  </table> 
  </form> 
  <p><?php<br /> 
  if (isset($_POST['url'])){<br /> 
  	$pgr=new GooglePageRankChecker;<br /> 
  	$url=$_POST['url'];<br /> 
  	$rank = $pgr->getRank($url);<br /> 
  	echo ‘</p> 
  <p style="text-align: center;"><span style="font-size: 20pt;color: #0000FF;	border-style:dotted;border-width: 1px;background-color: #FFFFCC;<br /> 
  		"><a data-test="test" rel="nofollow" style="word-wrap: break-word; text-decoration: underline;" target="_blank" onclick="return dhExternalLinkRedirect(this)" href="/ExternalLinkRedirect?module=pgdcode&messageId=84370694&url='.$url.'" class="broken_link" data-href="'.$url.'" class="broken_link">‘.$url.’</a></span><br /> 
  		<span style="font-size: 18pt;color: #0000FF;border-style:dotted;border-width: 1px;background-color: #FFFFCC;">  The Page Rank is: ’.$rank.’  </span></p> 
  <p>	‘;<br /> 
  }</p> 
  <p>class GooglePageRankChecker {</p> 
  <p>  // Track the instance<br /> 
    private static $instance;</p> 
  <p>  // Constructor<br /> 
    function getRank($page) {<br /> 
      // Create the instance, if one isn’t created yet<br /> 
      if(!isset(self::$instance)) {<br /> 
        self::$instance = new self();<br /> 
      }<br /> 
      // Return the result<br /> 
      return self::$instance->check($page);<br /> 
    }</p> 
  <p>  // Convert string to a number<br /> 
    function stringToNumber($string,$check,$magic) {<br /> 
      $int32 = 4294967296;  // 2^32<br /> 
        $length = strlen($string);<br /> 
        for ($i = 0; $i < $length; $i++) {<br /> 
            $check *= $magic;<br /> 
            //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),<br /> 
            //  the result of converting to integer is undefined<br /> 
            //  refer tohttp://www.php.net/manual/en/language.types.integer.php<br /> 
            if($check >= $int32) {<br /> 
                $check = ($check – $int32 * (int) ($check / $int32));<br /> 
                //if the check less than -2^31<br /> 
                $check = ($check < -($int32 / 2)) ? ($check + $int32) : $check;<br /> 
            }<br /> 
            $check += ord($string{$i});<br /> 
        }<br /> 
        return $check;<br /> 
    }</p> 
  <p>  // Create a url hash<br /> 
    function createHash($string) {<br /> 
      $check1 = $this->stringToNumber($string, 0×1505, 0×21);<br /> 
        $check2 = $this->stringToNumber($string, 0, 0x1003F);</p> 
  <p>    $factor = 4;<br /> 
      $halfFactor = $factor/2;</p> 
  <p>      $check1 >>= $halfFactor;<br /> 
        $check1 = (($check1 >> $factor) & 0x3FFFFC0 ) | ($check1 & 0x3F);<br /> 
        $check1 = (($check1 >> $factor) & 0x3FFC00 ) | ($check1 & 0x3FF);<br /> 
        $check1 = (($check1 >> $factor) & 0x3C000 ) | ($check1 & 0x3FFF);  </p> 
  <p>      $calc1 = (((($check1 & 0x3C0) << $factor) | ($check1 & 0x3C)) << $halfFactor ) | ($check2 & 0xF0F );<br /> 
        $calc2 = (((($check1 & 0xFFFFC000) << $factor) | ($check1 & 0x3C00)) << 0xA) | ($check2 & 0xF0F0000 );</p> 
  <p>      return ($calc1 | $calc2);<br /> 
    }</p> 
  <p>  // Create checksum for hash<br /> 
    function checkHash($hashNumber)<br /> 
    {<br /> 
        $check = 0;<br /> 
      $flag = 0;</p> 
  <p>    $hashString = sprintf('%u', $hashNumber) ;<br /> 
      $length = strlen($hashString);</p> 
  <p>    for ($i = $length - 1;  $i >= 0;  $i –) {<br /> 
        $r = $hashString{$i};<br /> 
        if(1 === ($flag % 2)) {<br /> 
          $r += $r;<br /> 
          $r = (int)($r / 10) + ($r % 10);<br /> 
        }<br /> 
        $check += $r;<br /> 
        $flag ++;<br /> 
      }</p> 
  <p>    $check %= 10;<br /> 
      if(0 !== $check) {<br /> 
        $check = 10 – $check;<br /> 
        if(1 === ($flag % 2) ) {<br /> 
          if(1 === ($check % 2)) {<br /> 
            $check += 9;<br /> 
          }<br /> 
          $check >>= 1;<br /> 
        }<br /> 
      }</p> 
  <p>    return ’7′.$check.$hashString;<br /> 
    }</p> 
  <p>  function check($page) {</p> 
  <p>    // Open a socket to the toolbarqueries address, used by <a data-test="test" rel="nofollow" style="word-wrap: break-word; text-decoration: underline;" target="_blank" onclick="return dhExternalLinkRedirect(this)" href="/ExternalLinkRedirect?module=pgdcode&messageId=84370694&url=http://nedir.doramimarlik.net/tag/google-toolbar/" data-href="http://nedir.doramimarlik.net/tag/google-toolbar/">Google Toolbar</a><br /> 
      $socket = fsockopen(“toolbarqueries.google.com”, 80, $errno, $errstr, 30);</p> 
  <p>    // If a connection can be established<br /> 
      if($socket) {<br /> 
        // Prep socket headers<br /> 
        $out = “GET /tbr?client=navclient-auto&ch=”.$this->checkHash($this->createHash($page)).<br /> 
                “&features=Rank&q=info:”.$page.”&num=100&filter=0 HTTP/1.1rn”;<br /> 
        $out .= “Host: toolbarqueries.google.comrn”;<br /> 
        $out .= “User-Agent: Mozilla/4.0 (compatible; GoogleToolbar 2.0.114-big; Windows XP 5.1)rn”;
 
        $out .= “Connection: Closernrn”;</p> 
  <p>      // Write settings to the socket<br /> 
        fwrite($socket, $out);</p> 
  <p>      // When a response is received…<br /> 
        $result = “”;<br /> 
        while(!feof($socket)) {<br /> 
          $data = fgets($socket, 128);<br /> 
          $pos = strpos($data, “Rank_”);<br /> 
          if($pos !== false){<br /> 
            $pagerank = substr($data, $pos + 9);<br /> 
            $result += $pagerank;<br /> 
          }<br /> 
        }<br /> 
        // Close the connection<br /> 
        fclose($socket);</p> 
  <p>      // Return the rank!<br /> 
        return $result;<br /> 
      }<br /> 
    }<br /> 
  }<br /> 
  ?></p> 
  <p><font face="Tahoma"><a data-test="test" rel="nofollow" style="word-wrap: break-word; text-decoration: underline;" target="_blank" onclick="return dhExternalLinkRedirect(this)" href="/ExternalLinkRedirect?module=pgdcode&messageId=84370694&url=http://nedir.doramimarlik.net" data-href="http://nedir.doramimarlik.net"><span style="font-size: 8pt; text-decoration: none">PHP kod sitesi</span></a></font>