you can see it working here, that it doesn't work:
http://vba.lescigales.org/serialcheck.php
the code i used is this:
PHP Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<form id="form1" name="form1" method="post" action="">
  <label>
  <input type="text" name="serial" id="serial" />
  </label>
  <label>
  <input type="submit" name="button" id="button" value="Submit" />
  </label>
</form>
<?php
$a 
"9d5e3ecdeb4cdb7acfd63075ae046672";
$b "lol";
if(
$_POST['serial'] = "")
{
//do nothing, it's empty!
}
else
{
  if(
$_POST['serial'] == $a or $b)
  {
  
//Do something here to tell the dude he's allowed!
  
echo "allowed!";
  } 
  else
  {
  echo 
"not allowed";
  }
}
?>
</body>
</html>
it always says allowed..

thanks for helping..
- Shadows.