Free Check Bulk Google Pagerank Script

I have a php script for google pagerank check, if you are interested please use it wisely. thanks.
1. bulk.php

<?php
if (isset($_REQUEST['domain'])) {
    include ('pagerank.class.php');
    $check = new GooglePageRankChecker;
    $domainlist = explode("\n", trim($_REQUEST['domain']));
    $result = "<div align=\"center\">\n";
    foreach ($domainlist as $domain) {
        $domain = trim($domain);
        if ($domain != "") {
            $pr = $check->getRank($domain);
            $result .= "<span>" . $domain .  " | PR ";
            $result .= $pr;
            $result .= "</span><br />\n";
        }
    }
    $title = 'Page Rank Checker Result';
    $result .= "</div>\n";
} else {
    $title = 'Page Rank Checker';
}
?>
<?php
if (isset($result))
    echo $result;
?>
<div align="center">
<form action="" method="post">
<textarea name="domain" style="width: 450px;height:100px;"></textarea><br>
<input type="submit" name="submit" value="Check Bulk PR"/></form>

PHP:

2. pagerank.class.php

<?php
class GooglePageRankChecker {
 
  // Track the instance
  private static $instance;
 
  // Constructor
  function getRank($page) {
    // Create the instance, if one isn't created yet
    if(!isset(self::$instance)) {
      self::$instance = new self();
    }
    // Return the result1
    return self::$instance->check($page);
  }
 
  // Convert string to a number
  function stringToNumber($string,$check,$magic) {
    $int32 = 4294967296;  // 2^32
      $length = strlen($string);
      for ($i = 0; $i < $length; $i++) {
          $check *= $magic;
          //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),
          //  the result1 of converting to integer is undefined
          //  refer to http://www.php.net/manual/en/language.types.integer.php
          if($check >= $int32) {
              $check = ($check - $int32 * (int) ($check / $int32));
              //if the check less than -2^31
              $check = ($check < -($int32 / 2)) ? ($check + $int32) : $check;
          }
          $check += ord($string{$i});
      }
      return $check;
  }
 
  // Create a url hash
  function createHash($string) {
    $check1 = $this->stringToNumber($string, 0x1505, 0x21);
      $check2 = $this->stringToNumber($string, 0, 0x1003F);
 
    $factor = 4;
    $halfFactor = $factor/2;
 
      $check1 >>= $halfFactor;
      $check1 = (($check1 >> $factor) & 0x3FFFFC0 ) | ($check1 & 0x3F);
      $check1 = (($check1 >> $factor) & 0x3FFC00 ) | ($check1 & 0x3FF);
      $check1 = (($check1 >> $factor) & 0x3C000 ) | ($check1 & 0x3FFF); 
 
      $calc1 = (((($check1 & 0x3C0) << $factor) | ($check1 & 0x3C)) << $halfFactor ) | ($check2 & 0xF0F );
      $calc2 = (((($check1 & 0xFFFFC000) << $factor) | ($check1 & 0x3C00)) << 0xA) | ($check2 & 0xF0F0000 );
 
      return ($calc1 | $calc2);
  }
 
  // Create checksum for hash
  function checkHash($hashNumber)
  {
      $check = 0;
    $flag = 0;
 
    $hashString = sprintf('%u', $hashNumber) ;
    $length = strlen($hashString);
 
    for ($i = $length - 1;  $i >= 0;  $i --) {
      $r = $hashString{$i};
      if(1 === ($flag % 2)) {
        $r += $r;
        $r = (int)($r / 10) + ($r % 10);
      }
      $check += $r;
      $flag ++;
    }
 
    $check %= 10;
    if(0 !== $check) {
      $check = 10 - $check;
      if(1 === ($flag % 2) ) {
        if(1 === ($check % 2)) {
          $check += 9;
        }
        $check >>= 1;
      }
    }
 
    return '7'.$check.$hashString;
  }
 
  function check($page) {
 
    // Open a socket to the toolbarqueries address, used by Google Toolbar
    $socket = fsockopen("toolbarqueries.google.com", 80, $errno, $errstr, 30);
 
    // If a connection can be established
    if($socket) {
      // Prep socket headers
      $out = "GET /tbr?client=navclient-auto&ch=".$this->checkHash($this->createHash($page)).
              "&features=Rank&q=info:".$page."&num=100&filter=0 HTTP/1.1\r\n";
      $out .= "Host: toolbarqueries.google.com\r\n";
      $out .= "User-Agent: Mozilla/4.0 (compatible; GoogleToolbar 2.0.114-big; Windows XP 5.1)\r\n";
      $out .= "Connection: Close\r\n\r\n";
 
      // Write settings to the socket
      fwrite($socket, $out);
 
      // When a response is received...
      $result1 = "N/A";
      while(!feof($socket)) {
        $data = fgets($socket, 128);
        $pos = strpos($data, "Rank_");
        if($pos !== false){
          $pagerank = substr($data, $pos + 9);
          $result1 += $pagerank;
        }
      }
      // Close the connection
      fclose($socket);
 
      // Return the rank!
      return $result1;
    }
  }
}
 
?> 

PHP:

 

It's "Do you like" not "Are you like".
I will try this out though.

 

thanks for share

 

Nice Working Good I Try

 

Great work you have done...I'll try this one soon.....

 

thanks for this script

 

Nice. Script but:
$int32 = 4294967296
What means that?