Here is a step by step To-Do list for Yii beginners. The list is an advice of what tutorials and documentation you can walk through to get a full understanding of the Yii Framework. These can be a help to learn Yii.
You need to know how to program in PHP. You can find many tutorials on the web, or buy a book. If you'd like a book, I recommend Larry Ullman's books. Some people learn PHP from the PHP manual. Two web tutorials can be found on webmonkey and home&learn.
You need to know the basics of how Object Oriented Programming works. Same as above: use Google or buy a book. You need to read the PHP manual on OOP. It will take you a few hours. Another tutorial about OOP can be found here, and a video tutorial here.
It is very important to understand what the Model-View-Controller pattern means! If you don't, you will think Yii is chaos. As soon as MVC "clicks" in your mind, you will see the very logical pattern. Read general MVC article on Wikipedia and details of Yii's MVC. You can also find an article here about Understanding MVC.
I highly recommend reading (or even rereading) the Getting Started with jQuery page from jQuery.com. These are some basics you need to know, since Yii uses jQuery as well. If you want to dive more into jQuery, I added some more links at the Extra's at the bottom.
The following is important to always remember: You always need to open the API pages on functions you're using. The descriptions of all functions of a language can be found here. The API docs are your memory, since your brain can't remember it ALL. ;) For PHP, use the search box on the top right of PHP.net. For jQuery, you can search the jQuery Docs. And here is the API for Yii 2.0 which has a search feature.
The Definitive Guide to Yii
The Definitive Guide to Yii is the central and most important learning resource for Yii. It is definitive and was written by the core Yii developers. Just walk through all pages from top to the bottom. Tip: Also check out the comments on the bottom of the pages.
At some point while you read the Definitive Guide you'll want to get started with coding in Yii. If you begin with the conventional starting point then you stand a better chance of getting help when you need it. Install the Yii2 demo application. Follow the instructions in the README of those apps to install. Then study the code and start experimenting.
Note: Stick to the basic app for learning. The advanced app adds a lot of confusing complication for team development and multiple websites in one project.
Got confused what's happening?
Learn to use the Debug toolbar and debugger. With the debug toolbar you can view what's going on behind the scenes. It exposes your app's configuration, requests and responses, database queries, and a lot of other key information.
WHAT THEN? ¶
Check out the Yii Wiki and the Yii Class Reference. Tip: You can view Yii source code directly in the API docs. Also, the lookup/search box in there is invaluable.
If you have questions, head towards the Community forums or the irc chatroom at #yii on irc.freenode.org.
There are a lot of extensions for Yii. These are extra "toolboxes", made by the Yii community, that you can re-use in your applications.
Return ... to the Source
To really understand Yii and use it most effectively, get into the habit of reading the Yii classes themselves. They are just PHP code that becomes part of your project. They are written using a simple, clear and consistent style. Remember to return to the source.
Basics - can take days, weeks or years. ;) Yii - Step 1 & 2, takes a few hours. The rest takes days, or a few weeks if you're doing things parttime. After all that, you should go into the depths of building your own custom Yii stuff!
Have fun with Yiiing! Kind regards, Jeroen
[Updated by thefsb/tom Feb 2015]
Nice one! Very short and clear.
Though, even if it takes few days/weeks to read Yii guides and stuff, it can take much more time (months) to learn how to solve different problems using Yii, to understand its philosophy and the source code.
Also I think you should mention Extensions repository, because there are many nice & useful components which can help a lot in the process of learning and using Yii :)
Disagree on some of your points,good list overall though.
Let me disagree on some of your points.I don't think you need to be an expert in PHP to start with Yii.I came from Adobe's Flex framework to Yii and I had no idea about PHP.OK,so maybe I spent a few days to learn some basics of the syntax,but I don't agree that you have to spent years in learning PHP before you take up Yii.
About MVC.I think you can learn MVC in the context of Yii,no need to "take a course on MVC" just to understand Yii's MVC.Just dive into Yii and you'll understand MVC as you go.
I agree on 4-7.I think the inportant point is that if you have a programming experience and know the basics of OOP,learning the basics of Yii will be easy.
Thanks for feedback!
Ofcourse I should add in the Extensions repository!
I never said you should be a php expert. ;) But you do need some knowledge about it. Though, as every programmer knows: If you know how to ride one bicycle, its easy to pick up a different one as well. I'll try to change some of my wordings to reflect that. Thanks!
A better way to debug
Great info, very clear and some great links - I would add for debugging, if you get a little confused there is nothing better than running something like XDebug in Eclipse or NetBeans and following through that processing either step by step or stopping at set breakpoints.
Thank you for your feedback Callum.
I do think that debugging is a topic that deserves a full elaborate wiki page itself.. If you know some more wiki pages that explain the topic well, please message me on the forum.
Intuitively followed this path
Why I didn't find this article weeks ago?
Anyway, I followed exactly this path.
I would say to understand OOP and MVC is really important. Once you did it, it kind of defines the frame for how you will thing while developing.
Also I would recommend not to follow it completly linear, but for example read the Definitive Guide a little, code a little using the tutorial, then read specific things you come across when you code. So it will be in a context of real tasks.
If you have any questions, please ask in the forum instead.
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