I use this code to get google page rank. it works perfect on my local host but it returns zero rank when I use it on my host(linux-php5). code:
<html>
<head>
<title>GPR</title>
<body>
<?php
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 $a;
}
define('GOOGLE_MAGIC',0xE6359A60);
function Mix($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 $mix[2];
}
function StringOrder($string){
for($i=0;$i<strlen($string);$i++){$result[$i]=ord($string{$i});}
return $result;
}
$url="Yahoo.com";
$server="toolbarqueries.google.com";
$url="info:"."$url";
$ch=trim(str_replace("-","",sprintf("6%u
",GoogleCH(StringOrder($url)))));
$res="http://$server/tbr?client=navclient-auto&ch=$ch&features=Rank&q=$url";
$data=@fopen("$res",r);
if($data){
while($line = fgets($data,1024)) {
if(substr($line,0,7)=="Rank_1:"){$rankline = $line;}
}
fclose($data);
if (isset($rankline)==false){$rankline="";};
$pagerank = trim(substr($rankline,9,2));
if($pagerank==""){$pagerank="0";}
echo <<<HEADER
<table border=0>
HEADER;
echo "<td nowrap colspan=2><a href=\"http://".$url."\">".$url."</a></td>
";
echo "</tr>";
echo "<tr>";
echo "<td nowrap>Pagerank: </td>";
echo "<td nowrap><b>".$pagerank."</b> </td>
";
$out = '';
echo $out;
echo <<<FOOTER
</table>
</td></tr></table>
</blockquote>
FOOTER;
}
?>
</body>
</html>
Why is that? and how can I fix it?
Does your host allow you to use fopen for external URLs? You may need to use CURL.
First thing to do is verify that that allow_url_fopen is enabled on that host.
what php versions are you using in your development and production environment?
check the following settings with emphasis on safe mode and fopen() remote resources: