This is Level 3
";
if (isset( $_GET[ 'file' ]))
{
$secure3=$_GET[ 'file' ];
$secure3=strtolower($secure3);
$secure3=str_replace( array("http://", "https://") ,"" , $secure3);
$secure3=str_replace (array ( ":" , "/" , "..\\", "../" ), "" , $secure3);
if (isset($secure3))
{
include($secure3.".php");
}
}
?>