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- Errore script per calcolare automaticamente il pagerank
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Errore script per calcolare automaticamente il pagerank
Salve, io ho questo codice php:
[php]<?php
//error_reporting(E_ALL);define('GOOGLE_MAGIC', 0xE6359A60);
//unsigned shift right
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) /* all the case statements fall through /
{
case 11: $c+=($url[$k+10]<<24);
case 10: $c+=($url[$k+9]<<16);
case 9 : $c+=($url[$k+8]<<8);
/ the first byte of c is reserved for the length /
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]);
/ case 0: nothing left to add /
}
$mix = mix($a,$b,$c);
/-------------------------------------------- report the result */
return $mix[2];
}//converts a string into an array of integers containing the numeric value of the char
function strord($string) {
for($i=0;$i<strlen($string);$i++) {
$result* = ord($string{$i});
}
return $result;
}function ReadPR($link)
{
$fp = fsockopen ("google.com", 80, $errno, $errstr, 30);
//$ip = gethostbyname("google.com");
//$fp = fsockopen ($ip, 80, $errno, $errstr, 30);if (!$fp)
{
echo "$errstr ($errno)\n";
exit(1);
}
else
{
//$out = "GET $link HTTP/1.1\r\n";
$out = "GET $link HTTP/1.0\r\n";
$out .= "Host: toolbarqueries.google.com\r\n";
$out .= "User-Agent: Mozilla/4.0 (compatible; GoogleToolbar 2.0.114.9-big; Windows 5.2)\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);//while (!feof($fp))
// echo fgets ($fp,128);do{
$line = fgets($fp, 128);
}while ($line !== "\r\n");
$data = fread($fp,8192);
fclose ($fp);
return $data;
}
}function GetPR($url)
{
$url ='info:'.$url;
$ch = GoogleCH(strord($url));
$data = ReadPR("/search?client=navclient-auto&ch=6$ch&features=Rank&q=$url");
$rankarray = explode (':', $data);
return $rankarray[2];
}/* per essere avvisati quando qualcuno richiede il calcolo del PR */
if ( isset($_POST['url']) && $_POST['url'] !== '' )
{
$email = "il mio indirizzo e.mail";
mail($email, "Page rank checker",
"Richiesta Page Rank: ".$_POST['url']);/* fine allert */
echo '<div align="center"><table><tr><td align="center">Il PageRank in Google per '.$_POST['url'].' è : '.GetPR($_POST['url']).'<img src="google-page-rank/'.GetPR($_POST['url']).'.jpg"></td></tr></table></div>';
}
else
{
echo "<form action='' method='post'>"."URL: <input name='url' value='' type='text' size=40> ";
echo "<input name='submit' type='submit' value='Ottieni il PageRank'></form>";
}?>[/php]
serve per calcolare gli attuali pagerank di siti. Tramite un casella di un form s'inserisce l'url e si preme invio, il risultato è apposto soltanto se riesce a calcolarlo mentre se non riesce dovrebbe riportare come risultato "PR-1" . Non è così se non riesce a calcolare mi s'ingrippa lo script.
Dov'è l'errore?Grazie
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Nulla?