Google PR value of the PHP implementation code

PageRank Lookup v1.1 by hm2k (update:31/01/07) Based on an Alogoritham found here:http://pagerank.gamesaga.net/ Settings-host and User Agent $googlehost = ' toolbarqueries.google.com '; $googleua = ' mozilla/5.0 (Windows; U Windows NT 5.1; En-us; rv:1.8.0.6) gecko/20060728 firefox/1.5 '; Converts a string to a 32-bit integer function Strtonum ($Str, $Check, $Magic) { $Int 32Unit = 4294967296; 2^32 $length = strlen ($STR); for ($i = 0; $i < $length; $i + +) { $Check *= $Magic; If the float is beyond the boundaries of integers (usually +/-2.15e+9 = 2^31), The result of converting to an integer is undefined Refer to Http://www.php.net/manual/en/language.types.integer.php if ($Check >= $Int 32Unit) { $Check = ($Check-$Int 32Unit * (int) ($Check/$Int 32Unit)); If the check less than-2^31 $Check = ($Check <-2147483648)? ($Check + $Int 32Unit): $Check; } $Check + = Ord ($Str {$i}); } return $Check; } Hash-encode a URL function Hashurl ($String) { $Check 1 = strtonum ($String, 0x1505, 0x21); $Check 2 = strtonum ($String, 0, 0x1003f); $Check 1 >>= 2; $Check 1 = (($Check 1 >> 4) & 0x3ffffc0) | ($Check 1 & 0x3F); $Check 1 = (($Check 1 >> 4) & 0x3ffc00) | ($Check 1 & 0x3ff); $Check 1 = (($Check 1 >> 4) & 0x3c000) | ($Check 1 & 0x3fff); $T 1 = ((($Check 1 & 0x3c0) << 4) | ($Check 1 & 0x3C)) <<2) | ($Check 2 & 0xf0f); $T 2 = ((($Check 1 & 0xffffc000) << 4) | ($Check 1 & 0x3c00)) << 0xA) | ($Check 2 & 0xf0f0000); Return ($T 1 | $T 2); } Generate a checksum for a hash string function CheckHash ($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. $HashStr; } Returns the PageRank hash check code function Getch ($url) {return CheckHash (Hashurl ($url));} Return PR Value function Getpr ($url) { Global $googlehost, $googleua; $ch = Getch ($url); $fp = Fsockopen ($googlehost, $errno, $errstr, 30); if ($fp) { $out = "Get/search?client=navclient-auto&ch= $ch &features=rank&q=info: $url http/1.1\r\n"; echo " $out \ n "; Debug only $out. = "User-agent: $googleua \ r \ n"; $out. = "Host: $googlehost \ r \ n"; $out. = "connection:close\r\n\r\n"; Fwrite ($fp, $out); $pagerank = substr (fgets ($FP, 128), 4); Debug only Echo $pagerank; Debug only while (!feof ($fp)) { $data = fgets ($fp, 128); Echo $data; $pos = Strpos ($data, "rank_"); if ($pos = = = False) {} else{ $PR =substr ($data, $pos + 9); $PR =trim ($PR); $PR =str_replace ("\ n", "', $PR); return $PR; } } else {echo ' $errstr ($errno) \ n "; }//debug only Fclose ($FP); } } Generate PageRank Graphics function PageRank ($url, $width =40, $method = ' style ') { if (!preg_match ('/^ (http:\/\/)? ( [^\/]+)/I ', $url) {$url = ' http:/'. $url;} $PR =GETPR ($url); $pagerank = "PageRank: $PR/10"; The (old) Image method if ($method = = ' image ') { $prpos = $width * $PR/10; $prneg = $width-$prpos; $html = "; } The Pre-styled method if ($method = = ' style ') { $prpercent =100* $PR/10; $html = "; } $out = ". $html."; return $out; } if ((!isset ($_post[' url ')) && (!isset ($_get[' url '))) {echo ';} if (isset ($_request[' url ')) {echo pagerank ($_request[' url '));} ?> Copy Code

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