Trying to put info from files into database

You don't need / should not have base_url in the path as this gives you a url (http://domain.ext/yourpath)
You need a physical path.
Per the documentation: Paths are almost always relative to your main index.php file.
So you should call

PHP Code:

$files = directory_map('./public/images/gallery/');
// in public is where your index.php file is then 
$files = directory_map('./images/gallery/'); 


If you still have an error do a var_dump or print_r of $files to see the content

A good decision is based on knowledge and not on numbers. - Plato