I have a file a.php where I have defined <a href="abc.com/page_id=11?key=123">link</a>
I have created a custom template custom.php and created a page at wordpress backend that has page_id=11
So, from a.php I am sending a user to custom.php with the help of page_id and then fetching the key=123
This is working fine..
The only problem is that I am not sure about page_id = 11.
Is it possible to get the same using the shortcode so as I can avoid using the page_id in my template file.