What is shortcode in wordpress ?
Worpdress opensource CMS, Shortcodes in WP are little bits of code that allow you to do various things with little effort. They were introduced in WordPress 2.5, and the reason to introduce them was to allow people to execute code inside WordPress posts, pages, and widgets without writing any code directly. This allows you to embed files or create objects that would normally require a lot of code in just one single line. For example, a shortcode for embedding a video might look like this: