How to enable and use shortcodes in WordPress widgets using a PHP code. The code on this webpage will allow you to use shortcodes inside WordPress widgets. It works just like default widgets that utilize the do_shortcode function.
WordPress shortcodes were created to be used as a shortcut; Therefor, by default shortcodes do not translate when placed into the WordPress text widget or other widget that allows you to input text. Furthermore, most WordPress themes do not include the function that allows you to the use of shortcodes inside WordPress widgets. However, if you use this code you will be able to use the shortcodes programmed by your theme inside your widget areas.
Copy and paste the PHP code below into your current theme’s functions.php file and click Update.