我们如何通过PHP无需第三方API来获取谷歌PageRank

Question

请提供合适的在线谷歌PageRank显示代码，我们不能放置第三方API来获取此信息。我们只能使用Google的API。如果任何人有Pagerank的代码对我们有好处。

Answer 1

/*****************************************/ 
define('GOOGLE_MAGIC', 0xE6359A60); 

    function _zeroFill($a, $b){ 
    $z = hexdec(80000000); 
    if ($z & $a){ 
     $a = ($a>>1); 
     $a &= (~$z); 
     $a |= 0x40000000; 
     $a = ($a>>($b-1)); 
    }else 
     $a = ($a>>$b); 
    return $a; 
    } 

    function _mix($a,$b,$c){ 
    $a -= $b; $a -= $c; $a ^= (_zeroFill($c,13)); 
    $b -= $c; $b -= $a; $b ^= ($a<<8); 
    $c -= $a; $c -= $b; $c ^= (_zeroFill($b,13)); 
    $a -= $b; $a -= $c; $a ^= (_zeroFill($c,12)); 
    $b -= $c; $b -= $a; $b ^= ($a<<16); 
    $c -= $a; $c -= $b; $c ^= (_zeroFill($b,5)); 
    $a -= $b; $a -= $c; $a ^= (_zeroFill($c,3)); 
    $b -= $c; $b -= $a; $b ^= ($a<<10); 
    $c -= $a; $c -= $b; $c ^= (_zeroFill($b,15)); 
    return array($a,$b,$c); 
    } 

    function _GoogleCH($url, $length=null, $init=GOOGLE_MAGIC){ 
    if(is_null($length)) 
     $length = sizeof($url); 
    $a = $b = 0x9E3779B9; 
    $c = $init; 
    $k = 0; 
    $len = $length; 
    while($len >= 12){ 
     $a += ($url[$k + 0] + ($url[$k + 1] << 8) + ($url[$k + 2] << 16) + ($url[$k + 3] << 24)); 
     $b += ($url[$k + 4] + ($url[$k + 5] << 8) + ($url[$k + 6] << 16) + ($url[$k + 7] << 24)); 
     $c += ($url[$k + 8] + ($url[$k + 9] << 8) + ($url[$k + 10] << 16) + ($url[$k + 11] << 24)); 
     $_mix = _mix($a,$b,$c); 
     $a = $_mix[0]; $b = $_mix[1]; $c = $_mix[2]; 
     $k += 12; 
     $len -= 12; 
    } 
    $c += $length; 
    switch($len){ 
     case 11: $c += ($url[$k + 10] << 24); 
     case 10: $c += ($url[$k + 9] << 16); 
     case 9 : $c += ($url[$k + 8] << 8); 
     case 8 : $b += ($url[$k + 7] << 24); 
     case 7 : $b += ($url[$k + 6] << 16); 
     case 6 : $b += ($url[$k + 5] << 8); 
     case 5 : $b += ($url[$k + 4]); 
     case 4 : $a += ($url[$k + 3] << 24); 
     case 3 : $a += ($url[$k + 2] << 16); 
     case 2 : $a += ($url[$k + 1] << 8); 
     case 1 : $a += ($url[$k + 0]); 
    } 
    $_mix = _mix($a,$b,$c); 
    return $_mix[2]; 
    } 

    function _strord($string){ 
    for($i = 0;$i < strlen($string);$i++) 
     $result[$i] = ord($string{$i}); 
    return $result; 
} 

    function getPageRank($url){ 
    $pagerank = -1; 
    $ch = "6"._GoogleCH(_strord("info:" . $url)); 
    $fp = fsockopen("www.google.com", 80, $errno, $errstr, 30); 
    if($fp){ 
     $out = "GET /search?client=navclient-auto&ch=" . $ch . "&features=Rank&q=info:" . $url . " HTTP/1.1 
"; 
     $out .= "Host: www.google.com 
"; 
     $out .= "Connection: Close 

"; 
     fwrite($fp, $out); 
     while (!feof($fp)){ 
     $data = fgets($fp, 128); 
     $pos = strpos($data, "Rank_"); 
     if($pos === false){ 
     }else 
      $pagerank = substr($data, $pos + 9); 
     } 
     fclose($fp); 
    } 
    return $pagerank; 
} 
/*******************************************/ 

将上面的代码添加到您的脚本并调用getPageRank（$ url）函数，它将返回给定网址的确切页面排名。

Answer 2

试试这个http://www.pagerankcode.com/或http://www.bewebmaster.com/141.php

Answer 3

我想这者优先链接PHPClasses。它是一个API但是开放源代码，我不知道为什么它必须是自写的？