How to show one page with two different templates

Add an endpoint to your post permalink, name it clean.

In your callback for template_redirect use a special header.php or none at all. Do not forget to call exit;; otherwise WordPress will load the default template files later.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)