Multilanguage plugin customization – Shortcode for localization switcher

The client has downloaded and installed our Multilanguage plugin, and found it much to their liking. However, the default plugin functionality implies that a language switcher is available in the form of a widget that can be added to the sidebar. Since the client used a custom theme without the sidebars, it was most convenient for them to have the language switcher located in the header. For this matter, the client requested the development of a shortcode that could be added to the post, page or .php page (such as Header.php in the customer's case). Apart from that, we added this functionality to the main plugin version, so that the client could use this functionality on other websites, as well as to keep a possibility to update the plugin.