通过XML检查PageRank [英] Check PageRank Through XML

问题描述

我已经搜索了这个网站并在Google上搜索了很多，但不幸的是没有找到任何真正的答案，所以请原谅我.

I've searched this website and googled alot but unfortunately didn't find any real answer so please pardon me if it doesn't makes sense.

我正在使用PHP检查给定URL的页面排名，但是由于Google网站繁忙( http://toolbarqueries.google.com )显示的错误是；

I'm using PHP to check page rank of a given URL, but it sometimes show error due to busy google website (http://toolbarqueries.google.com) The error it shows is;

有什么办法可以通过XML甚至PHP来检查页面排名，并且提供了更好的解决方案，而这种解决方案不会显示出类似的错误?

Is there any way I can check page rank through either XML or even PHP with a better solution, which doesn't show any error like that?

请帮助！

推荐答案

我已经搜索并找到了一个不错的解决方案.试试这个:

I've searched and find a great solution. try this:

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::$instance = new self();
    }
    // Return the result
    return self::$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 *= $magic;
          //If the float is beyond the boundaries of integer (usually +/- 2.15e+9 = 2^31),
          //  the result of converting to integer is undefined
          //  refer to http://www.php.net/manual/en/language.types.integer.php
          if($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...
      $result = "";
      while(!feof($socket)) {
        $data = fgets($socket, 128);
        $pos = strpos($data, "Rank_");
        if($pos !== false){
          $pagerank = substr($data, $pos + 9);
          $result += $pagerank;
        }
      }
      // Close the connection
      fclose($socket);

      // Return the rank!
      return $result;
    }
  }
}

现在要检查PR的地方，使用此代码$some_var = GooglePageRankChecker::getRank("http://khanqah-daruslam.com");

Now where you want to check the PR, use this code $some_var = GooglePageRankChecker::getRank("http://khanqah-daruslam.com");

将URL替换为您的URL(或任何自定义URL)

Replace URL to yours (or any custom URL)

这篇关于通过XML检查PageRank的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！