how I can use header.php and footer.php outside from wordpress theme directory

Staff member

I have a theme installed in wordpress like this directory

Code:

/wp-content/themes/mytheme

so in the root I have custom code which is little complex and easy to integrate in wordpress theme so I want to finding an option where I can use

Code:

header.php

and

Code:

footer.php

in root directory like this way.

Code:

/custom_code/custom.php