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Calculating Hash of Thumbnails

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Hello,

I'm creating a website that generates a report of my movies in my mysql database. I'm also trying to display the cover of the movie.
The webserver is running on the same maschine where ma movies are stored.
In Eden i was able to calculate the hash with the function mentioned in the Wiki, but with the latest Frodo releases I'm unable to get the correct hash

E.g.
SQL Statement: select * from movie
Filename (attribute 'c22'): smb://FILESERVER/HD204UI 3/Collections/Alfred Hitchcock The Masterpiece Collection/Marnie.mkv
Hash returned by php: 977296af

Then i extend the extension .jpg and insert Thumbnails\9\ at the beginning
Thumbnails\9\977296af.jpg

Do you have any idea why this is not working anymore?

Then i'm also interessed in how i can retrieve the correct jpg-files for actors, fanarts, ...

Would be great if you can give me hint and/or correct my source-code.

Thanks a lot

PHP Code:
<?php

   $verb 
mysql_connect("fileserver","xbmc","xbmc") or die ("Keine Verbindung möglich");
   
mysql_select_db("xbmc_vid_20121108_72") or die ("DB nicht vorhanden");

   echo 
'<head>
            <style type="text/css">
            .kursiv { font-size:80%;font-family:Verdana;}
            .grosskursiv { font-size:90%;font-family:Verdana; }
            </style>

         </head>'
;

function 
_get_hash($file_path
{


   
$chars strtolower($file_path);

   
$crc 0xffffffff;

   for (
$ptr 0$ptr strlen($chars); $ptr++)
   {
      
$chr ord($chars[$ptr]);
      
$crc ^= $chr << 24;

      for ((int) 
$i 0$i 8$i++)
      {
         if (
$crc 0x80000000)
         {
            
$crc = ($crc << 1) ^ 0x04C11DB7;
         }
         else
         {
            
$crc <<= 1;
         }
      }
   }

   
// Système d'exploitation en 64 bits ?
   
if (strpos(php_uname('m'), '_64') !== false)
   {
      
//Formatting the output in a 8 character hex
      
if ($crc>=0)
      {
         
$hash sprintf("%16s",sprintf("%x",sprintf("%u",$crc)));
      }
      else
      {
         
$source sprintf('%b'$crc);
         
$hash "";
         while (
$source <> "")
         {
            
$digit substr($source, -4);
            
$hash dechex(bindec($digit)) . $hash;
            
$source substr($source0, -4);
         }
      }
      
$hash substr($hash8);
   }
   else
   {
      
//Formatting the output in a 8 character hex
      
if ($crc>=0)
      {
         
$hash sprintf("%08s",sprintf("%x",sprintf("%u",$crc)));
      }
      else
      {
         
$source sprintf('%b'$crc);
         
$hash "";
         while (
$source <> "")
         {
            
$digit substr($source, -4);
            
$hash dechex(bindec($digit)) . $hash;
            
$source substr($source0, -4);
         }
      }
   }

   return 
$hash;
}


echo 
'<table border="1"  style="border-collapse:collapse">';
     
$result mysql_query("select * from movie",$verb);
     while (
$row_proz mysql_fetch_array($result))
     {

     
$test _get_hash($row_proz['c22']);


    
$strFirstChar substr($test,0,1);
    
$strImageFile "Thumbnails\\".$strFirstChar."\\".$test.".jpg";

             echo 
'
             <div style="page-break-inside:avoid">
                
                    <tr>
                        <td width=800px valign=top  nowrap><font class="grosskursiv"><b>'
.$row_proz['c00'].'</b></font><br><br><font class="kursiv">'.$row_proz['c14'].'<br>'.$row_proz['c07'].'<br>'.$row_proz['c22'].'<br>'.$strImageFile.'<br>'.$row_proz['c01'].'</font></td>
                        <td valign=top height="200"  nowrap><p><img src="'
.$strImageFile.'" width="150" height="200" alt="'.$strImageFile.'"></p></td>
                    </tr>
                
            </div>    '  
;
     }
     
mysql_free_result($result);

    echo 
'</table>';

     
mysql_close($verb);
?>

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