Yii comes with internationalisation (i18n) "out of the box". There are instructions in the manual as to how to configure Yii to use i18n, but little information all in one place on how to fully integrate it into the bootstrap menu. This document attempts to remedy that.

There are a few issues with the other solutions I originally used that I found from other wikis. I address the issues I had in this much simpler and shorter way. I am also going to explain what is going into way more detail than others to help people understand what's going on.

By default, Yii 2.0 chooses to use the non-minified version of Jquery and Bootstrap files (CSS and JS). However, there's a simple way to indicate Yii to use the minified version.

Are you using the Bootstrap 3 form styles with Yii 2 Active Forms? Have you faced problems in displaying complex layouts which needs you to display multiple inline form fields in a single row, within bootstrap horizontal forms. Then read on.

This wiki will explain how you can use the Field range extension with multiple Bootstrap form layouts (vertical or horizontal). You maybe aware, that the yii2-field-range extension enables you to easily setup ActiveField range fields with Bootstrap styling. You basically can setup two attributes joined together like a single field with combined validation error block.

Step 1: Initialize the Bootstrap Tooltip & Popover plugins in your view layout file @web\views\layouts\main.php. Add this to somewhere in the beginning head section (after you have loaded the Jquery using your AppAsset or something similar).

If you started playing with Yii2's new GridView, you will soon realize that some things have improved quite a lot, but I am sure its going to be a bit confusing at first glance when you try to modify certain javascript behaviors like for example, its delete confirmation dialog box.

An example of customizing the Yii GridView is mentioned here. You can easily override Bootstrap or other styling defaults by changing the GridView default options.