Prueba asi:
Código PHP:
Ver original<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<html>
<body color="#B81321">
<?php
$pin = $_POST["code"]
if($pin==711922){
echo "<head><meta http-equiv='refresh' content='0; url=promotionW.html'></head>";
}
else {
echo "<head><meta http-equiv='refresh' content='0; url=promotionL.html'></head>";
}
?>
</body>
</html>