Introduction
In this chapter we will cover how to install Yii Framework and about possible techniques of installation. We will introduce you to application templates: basic and advanced and their difference between them. Then you will learn about dependency injection container. This chapter contains info about model events, which trigger after some actions such as model saving, updating and others. We will learn how to use external code which will include ZendFramework, Laravel, or Symfony. We will also be learning about how to update your yii-1.x.x
based application to yii2
step-by-step.