pagerank button image -- how?

How does the pagerank image work so all you have to do is put an image on your site and the pagerank is displayed? Can someone point out an article or script that does it? Thanks!

 

the image is actual php code that just sends a image header with the pagerank drawn

 

Do you have an example of the code that I Could use?

 

the main thing is getting the code then just draw it useing the gdlib

http://us3.php.net/gd

I am pretty busy today but I will try to come up with something

 

Oh ok, thanks! I'll keep an eye out for something or try to research some more on the web.

 

You can get one here: http://www.mypagerank.net/service_google_indicator_index

 

since this is the php forum I am guessing fsmedia wanted the php code ... but if that link does what you wanted then cool

 

Yes Shoemoney, I am looking for the PHP code -- I want to self-host it...

 

<?php 
session_start();
$url = $_SESSION['url'];



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;
}

$target=trim($_GET['uri']);    

if($target!=""){
  $server="www.google.com";
  
  /* Alternative Server
  $server="toolbarqueries.google.com";
  $server="64.233.161.99";
  $server="64.233.161.104";
  $server="66.102.7.99";
  $server="66.102.7.104";
  $server="216.239.59.99";
  $server="216.239.59.104";
  $server="216.239.37.104";
  $server="216.239.39.99";
  $server="216.239.39.104";
  $server="66.102.11.99";
  $server="66.102.11.104";
  $server="216.239.57.99";
  $server="216.239.57.104";
  $server="66.102.9.99";
  $server="66.102.9.104";
  $server="216.239.53.99";
  $server="216.239.53.104";
  */
  
  $url="info:"."$target";
  $ch=trim(str_replace("-","",sprintf("6%u\n",GoogleCH(StringOrder($url)))));
  $res="http://$server/search?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);
    $pagerank = trim(substr($rankline,9,2));
    if($pagerank==""){$pagerank="0";}
						
						$img;
						switch($pagerank){
							case 0:	$img = "img/gpr0.gif"; break;
							case 1:	$img = "img/gpr1.gif"; break;
							case 2: $img	= "img/gpr2.gif"; break;
							case 3: $img	= "img/gpr3.gif"; break;
							case 4: $img	= "img/gpr4.gif"; break;
							case 5: $img	= "img/gpr5.gif"; break;
							case 6: $img	= "img/gpr6.gif"; break;
							case 7: $img	= "img/gpr7.gif"; break;
							case 8: $img	= "img/gpr8.gif"; break;
							case 9: $img	= "img/gpr9.gif"; break;
							case 10: $img	= "img/gpr10.gif"; break;
							}
						
								
								
								$_POST['pr'] = $pagerank;
								header("Content: image/gif");
								header("Location: $img");
								
						
  }
}

?>

PHP:

There you go...

 

very nice man: fsmedia you will probably want to cache the image if you do some high volume...

 

Thanks Shoemoney and artViper! I won't be doing high volumes at the current time, it's only for personal testing right now, but I'll get into high volumes later on with a new site I'm launching. Just starting to do testing for smaller sites right now of our products.

 

I find that PHP code very useful.... Thanks!

 

Are you guys sure Google has no problem by the usage of such scripts?

 

Personally, I took off the PHPLDs code for PR and I'm using it . Uh.. creativity strikes me.. .