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- <?php
- //www.lampdeveloper.co.uk/
- /*
- * convert a string to a 32-bit integer
- */
- function StrToNum($Str, $Check, $Magic)
- {
- $Int32Unit = 4294967296; // 2^32
- $length = strlen($Str);
- 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 >= $Int32Unit) {
- $Check = ($Check - $Int32Unit * (int) ($Check / $Int32Unit));
- //if the check less than -2^31
- $Check = ($Check < -2147483648) ? ($Check + $Int32Unit) : $Check;
- }
- $Check += ord($Str{$i});
- }
- return $Check;
- }
- /*
- * Genearate a hash for a url
- */
- function HashURL($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 | $T2);
- }
- /*
- * genearate a checksum for the hash string
- */
- function CheckHash($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) {
- $fp = fsockopen("toolbarqueries.google.com", 80, $errno, $errstr, 30);
- if (!$fp) {
- echo "$errstr ($errno)<br />\n";
- } else {
- $out = "GET /search?client=navclient-auto&ch=".CheckHash(HashURL($url))."&features=Rank&q=info:".$url."&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";
- $out .= "Connection: Close\r\n\r\n";
- fwrite($fp, $out);
- //$pagerank = substr(fgets($fp, 128), 4);
- //echo $pagerank;
- while (!feof($fp)) {
- $data = fgets($fp, 128);
- $pos = strpos($data, "Rank_");
- if($pos === false){} else{
- $pagerank = substr($data, $pos + 9);
- echo $pagerank;
- }
- }
- fclose($fp);
- }
- }
- echo getpagerank('http://www.coderguru.com');
- ?>
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