Код:
<html>
   <head>
      <title>Hashkiller.com -Tool - MD5 Extractor</title>
   </head>
   <body>
      <h2>Hashkiller.com</h2>
      <h3>Tool: MD5-Extractor</h3>
      <form action="/bin/md5_extract.php" method="post">
         <textarea name="md5text" rows="10" cols="40">Input your MD5 here...</textarea>
         <br/>
         <input type="submit" name="md5submit" value="Extract" />
      </form>
      <br/>
<?php
if(isset($_POST['md5submit']))
{
   $md5text = $_POST['md5text'];
   $md5text = trim($md5text);
   if($md5text != '')
   {
      $preg = preg_match_all('@([0-9a-f]{32})@i',$md5text,$md5match);
      if($preg == true)
      {
         $md5match['1'] = array_unique($md5match['1']);
         $md5matchcount = count($md5match['1']);
         if($md5matchcount > 0)
         {
            asort($md5match['1']);
            echo '<b>Extracted MD5 '.$md5matchcount."</b><br/>\n";
            foreach($md5match['1'] AS $md5)
            {
               echo $md5."<br/>\n";
            }
         }else{
            echo '<b>Error</b>:<br/>No MD5 could be found';
         }
      }else{
         echo '<b>Error</b>:<br/>No MD5 could be found';
      }
   }else{
      echo '<b>Error</b>:<br/>Your input was empty';
   }
}
?>
   </body>
</html>