Просмотр файла pagerank.php

<?php 

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function StrToNum($Str, $Check, $Magic) 
{ 
    $Int32Unit = 4294967296;  // 2^32 

    $length = strlen($Str); 
    for ($i = 0; $i < $length; $i++) { 
        $Check *= $Magic;      
        if ($Check >= $Int32Unit) { 
            $Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit)); 
            $Check = ($Check < -2147483648) ? ($Check + $Int32Unit) : $Check; 
        } 
        $Check += ord($Str{$i}); 
    } 
    return $Check; 
} 

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); 
} 

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; 
} 

function getpagerank($url) { 
    $query="http://toolbarqueries.google.com/search?client=navclient-auto&ch=".CheckHash(HashURL($url)). "&features=Rank&q=info:".$url."&num=100&filter=0"; 
    $data=file_get_contents_curl($query); 
    $pos = strpos($data, "Rank_"); 
    if($pos === false){} else{ 
        $pagerank = substr($data, $pos + 9); 
        return $pagerank; 
    } 
}

function file_get_contents_curl($url) { 
    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_HEADER, 0); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url); 
    $data = curl_exec($ch); 
    curl_close($ch); 

    return $data; 
} 

?>