ال Yii هو إطار عمل PHP، لذا تأكد من قراءة وفهم المرجع الرسمي الخاص باللغة (http://php.net/manual/en/langref.php). عند البدء بتطوير المشاريع أو التطبيقات باستخدام ال Yii ، ستكتب التعليمات البرمجية بطريقة كائنية التوجه OOP، لذا تأكد من أنك على دراية بـمفاهيم ال OOP (https://secure.php.net/manual/en/language.oop5.basic.php) وكذلك ال namespaces (https://secure.php.net/manual/en/language.namespaces.php).
Basic understanding of object oriented programming is required. If you're not familiar with it, check one of the many
tutorials available such as [the one from tuts+](https://code.tutsplus.com/tutorials/object-oriented-php-for-beginners--net-12762).
Note that the more complicated your application is the more advanced OOP concepts you should learn in order to successfully
manage that complexity.
## Command line and composer
Yii extensively uses de-facto standard PHP package manager, [Composer](https://getcomposer.org/) so make sure you read
and understand its [guide](https://getcomposer.org/doc/01-basic-usage.md). If you are not familiar with using command line it is time to start trying. Once you
learn the basics you'll never want to work without it.