WordPress Theme Development
First, let’s discuss template files, which are the main building blocks of a WordPress theme. These files determine the layout and look of the content on your site.
For example, header.php is used to create a header, while comments.php enables you to display comments.
WordPress determines which template files to use on each page by going through the template hierarchy. This is the order in which WordPress will look for the matching template files every time a page on your site is loaded.