This code will help you in displaying the google page Rank for any website in the form of image or graphical display. You can even add images of your choice to display them according to the page rank value..Hope This will Help You..Happy Coding…..

<?php

      $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';

      //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($String) {

          $Check1 = StrToNum($String, 0x1505, 0x21);

          $Check2 = StrToNum($String, 0, 0x1003F);

          $Check1 >>= 2;      

          $Check1 = (($Check1 >> 4) & 0x3FFFFC0 ) | ($Check1 & 0x3F);

          $Check1 = (($Check1 >> 4) & 0x3FFC00 ) | ($Check1 & 0x3FF);

          $Check1 = (($Check1 >> 4) & 0x3C000 ) | ($Check1 & 0x3FFF); 

          $T1 = (((($Check1 & 0x3C0) << 4) | ($Check1 & 0x3C)) <<2 ) | ($Check2 & 0xF0F );

          $T2 = (((($Check1 & 0xFFFFC000) << 4) | ($Check1 & 0x3C00)) << 0xA) | ($Check2 & 0xF0F0000 );

          return ($T1 | $T2);

      }

      //genearate a checksum for the hash string

      function CheckHash($Hashnum) {

          $CheckByte = 0;

          $Flag = 0;

          $HashStr = sprintf('%u', $Hashnum) ;

          $length = strlen($HashStr);

          for ($i = $length - 1;  $i >= 0;  $i --) {

              $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($url) { return CheckHash(HashURL($url)); }

      //return the pagerank figure

      function getpr($url) {

              global $googlehost,$googleua;

              $ch = getch($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";

                 $out .= "User-Agent: $googleua\r\n";

                 $out .= "Host: $googlehost\r\n";

                 $out .= "Connection: Close\r\n\r\n";

                 fwrite($fp, $out);

                     while (!feof($fp)) {

                              $data = fgets($fp, 128);

                              //echo $data;

                              $pos = strpos($data, "Rank_");

                              if($pos === false){} else{

                                      $pr=substr($data, $pos + 9);

                                      $pr=trim($pr);

                                      $pr=str_replace("\n",'',$pr);

                                      return $pr;

                              }

                 }

                   fclose($fp);

              }

      }

      //generate the graphical pagerank

      function pagerank($url,$width=40,$method='style') {

              if (!preg_match('/^(http:\/\/)?([^\/]+)/i', $url)) { $url='http://'.$url; }

              $pr=getpr($url);

              $pagerank="PageRank: $pr/10";

              //The (old) image method

              if ($method == 'image') {

              $prpos=$width*$pr/10;

              $prneg=$width-$prpos;

              $html='<img src="http://www.google.com/images/pos.gif" width='.$prpos.' height=4 border=0 alt="'.$pagerank.'"><img src="http://www.google.com/images/neg.gif" width='.$prneg.' height=4 border=0 alt="'.$pagerank.'">';

              }

              //The pre-styled method

              if ($method == 'style') {

              $prpercent=100*$pr/10;

              $html='<div style="position: relative; width: '.$width.'px; padding: 0; background: #D9D9D9;"><strong style="width: '.$prpercent.'%; display: block; position: relative; background: #5EAA5E; text-align: center; color: #333; height: 4px; line-height: 4px;"><span></span></strong></div>';

              }

              $out='<a href="'.$url.'" title="'.$pagerank.'">'.$html.'</a>';

              return $out;

      }

      echo pagerank('www.samplephpcodes.com',40,'image');
 echo ‘<a href="http://www.samplephpcodes.com">sample php codes</a>’;
      ?>