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页面中嵌入google的pagerank显示_PHP

WBOY
WBOYoriginal
2016-06-01 12:34:221113parcourir

Google

代码如下:

  1. /**
  2. * blog.hd001.com Google PageRank Generator
  3. *
  4. *
  5. * @link:    http://blog.hd001.com
  6. * @author:  Pasio & superspice
  7. * @version: 0.1
  8. */
  9. @error_reporting(E_ALL ^ E_NOTICE);
  10. define('GOOGLE_MAGIC', 0xE6359A60);
  11. //unsigned shift right
  12. function zeroFill($a, $b)
  13. {
  14.     $z = hexdec(80000000);
  15.         if ($z & $a)
  16.         {
  17.             $a = ($a>>1);
  18.             $a &= (~$z);
  19.             $a |= 0x40000000;
  20.             $a = ($a>>($b-1));
  21.         }
  22.         else
  23.         {
  24.             $a = ($a>>$b);
  25.         }
  26.         return $a;
  27. }   
  28.    
  29.    
  30. function mix($a,$b,$c) {
  31.   $a -= $b; $a -= $c; $a ^= (zeroFill($c,13));   
  32.   $b -= $c; $b -= $a; $b ^= ($a8);   
  33.   $c -= $a; $c -= $b; $c ^= (zeroFill($b,13));
  34.   $a -= $b; $a -= $c; $a ^= (zeroFill($c,12));
  35.   $b -= $c; $b -= $a; $b ^= ($a16);
  36.   $c -= $a; $c -= $b; $c ^= (zeroFill($b,5));   
  37.   $a -= $b; $a -= $c; $a ^= (zeroFill($c,3));    
  38.   $b -= $c; $b -= $a; $b ^= ($a10);   
  39.   $c -= $a; $c -= $b; $c ^= (zeroFill($b,15));
  40.     
  41.   return array($a,$b,$c);
  42. }
  43.    
  44. function GoogleCH($url, $length=null, $init=GOOGLE_MAGIC) {
  45.     if(is_null($length)) {
  46.         $length = sizeof($url);
  47.     }
  48.     $a = $b = 0x9E3779B9;
  49.     $c = $init;
  50.     $k = 0;
  51.     $len = $length;
  52.     while($len >= 12) {
  53.         $a += ($url[$k+0] +($url[$k+1]8) +($url[$k+2]16) +($url[$k+3]24));
  54.         $b += ($url[$k+4] +($url[$k+5]8) +($url[$k+6]16) +($url[$k+7]24));
  55.         $c += ($url[$k+8] +($url[$k+9]8) +($url[$k+10]16)+($url[$k+11]24));
  56.         $mix = mix($a,$b,$c);
  57.         $a = $mix[0]; $b = $mix[1]; $c = $mix[2];
  58.         $k += 12;   
  59.         $len -= 12;
  60.     }
  61.    
  62.     $c += $length;
  63.     switch($len)              /* all the case statements fall through */
  64.     {
  65.         case 11: $c+=($url[$k+10]24);
  66.         case 10: $c+=($url[$k+9]16);
  67.         case 9 : $c+=($url[$k+8]8);
  68.           /* the first byte of c is reserved for the length */
  69.         case 8 : $b+=($url[$k+7]24);
  70.         case 7 : $b+=($url[$k+6]16);
  71.         case 6 : $b+=($url[$k+5]8);
  72.         case 5 : $b+=($url[$k+4]);
  73.         case 4 : $a+=($url[$k+3]24);
  74.         case 3 : $a+=($url[$k+2]16);
  75.         case 2 : $a+=($url[$k+1]8);
  76.         case 1 : $a+=($url[$k+0]);
  77.          /* case 0: nothing left to add */
  78.     }
  79.     $mix = mix($a,$b,$c);
  80.     /*-------------------------------------------- report the result */
  81.     return $mix[2];
  82. }
  83.    
  84. //converts a string into an array of integers containing the numeric value of the char
  85. function strord($string) {
  86.     for($i=0;$istrlen($string);$i++) {
  87.         $result[$i] = ord($string{$i});
  88.     }
  89.     return $result;
  90. }
  91. // http://www.example.com/ - Checksum: 6540747202
  92. if (!isset($_GET['url']))
  93. {
  94.     $url_o   = $_SERVER['HTTP_REFERER'];
  95. }
  96. else
  97. {
  98.     $url_o   = $_GET['url'];
  99. }
  100. $url_o = explode("?", $url_o);
  101. $url_o = $url_o[0];
  102. $url    = 'info:'.$url_o;
  103. $ch     = GoogleCH(strord($url));
  104. $url    ='info:'.urlencode($url_o);
  105. $cache_filename = "prcache/".urlencode($url_o).".pagerank";
  106. // check exists of cache file, if not exists, create it
  107. if(!file_exists($cache_filename) || (file_exists($cache_filename) && filemtime($cache_filename) time() - 86400))
  108. {
  109.     $url    = "http://toolbarqueries.google.com/search?client=navclient-auto&ch=6$ch&ie=UTF-8&oe=UTF-8&features=Rank&q=$url";
  110.     $result = @file_get_contents($url);
  111.     $tmp    = @explode(":", $result);
  112.     $rank   = intval($tmp[2]);
  113.     $handle = fopen ($cache_filename, "w");
  114.     flock($handle, LOCK_EX);
  115.     fwrite($handle, $rank);
  116.     flock($handle, LOCK_UN);
  117.     fclose($handle);
  118. }
  119. $pagerank = @file_get_contents($cache_filename);
  120. $pagerank = 2;
  121. $width = 6 * $pagerank;
  122. $width_ = 6 * (10-$pagerank);
  123. echo "document.writeln('\"80\" border=0 cellpadding=\"0\" cellspacing=\"0\" style=\"font-size:12px\">
    \"center\">PageRank
    \"80\" cellpadding=\"0\" cellspacing=\"1\" bgcolor=\"#CCCCCC\" height=\"10\" style=\"font-size:11px\">\"#FFFFFF\">
    \"62\">页面中嵌入google的pagerank显示_PHP\"/imgs/bar.gif\" width=\"$width\" height=\"20\">页面中嵌入google的pagerank显示_PHP\"/imgs/space.gif\" width=\"$width_\" height=\"20\"> \"center\" style=\"color:red\">$pagerank
    ');"
    ;

以上代码保存为pagerank.php到plugins目录下。
实现步骤
一、放一个bar.gif到imgs文件夹下,为上图中的绿色图片,再放一个space.gif到imgs文件夹下,该图片是一个1*1的空白图。
二、在plugins目录下建立prcache目录,并保证该目录为apache执行用户可读写的。
三、调用方法是:
页面中,在你想要显示pagerank的地方加入如下代码

完毕!

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