Create a WordPress Christmas box shortcode

WordPress shortcodes are a set of functions created inside functions.php, for creating macro codes for use in post content. As the name implies, a shortcode is a simple way to display complicated codes using instead, a shortened code.

Display a Read More link in WordPress Excerpts

Excerpts are the mini-descriptions of the posts shown on the main pages of most WordPress blogs, their category pages, and archive pages. You can place a filter in your functions.php file to overwrite the default.