Including resources in the page

Yii has a special class named CClientScript that can help include scripts, CSS, and other resources in the page.

How to do it...

We will start with including a script. There are three types of scripts: external scripts, core scripts, and inline scripts.

External script is a script located in a file and accessible through its own URL. For example, to include a script with the URL http://example.com/js/main.js, you can use the following code:

Yii::app()->clientScript->registerScriptFile("http://example.com/js/main.js");

In order to control the place where a script will be inserted, you can pass one of the following constants as the second parameter:

Constants	Description
CClientScript::POS_HEAD	In the head section, right before the title element
CClientScript::POS_BEGIN	At the beginning of the body section
CClientScript::POS_END	At the end of the body section

Core scripts are the ones bundled with Yii, such as jQuery. You can include a core script...