when php has already been studied, but multifunctional websites are already needed and in order not to write everything from scratch, frameworks are needed and the best frameworks for php are listed below
Symfony is a PHP web application framework and a set of reusable PHP components/libraries. It was published as free software on October 18, 2005 and released under the MIT license.
Yii is an open source, object-oriented, component-based MVC PHP web application framework. Yii is pronounced as "Yee" or [ji:] and in Chinese it means "simple and evolutionary" and it can be an acronym for "Yes It Is!
Laravel is a web application framework with expressive, elegant syntax. Already with a foundation. The laravel framework is very convenient, functional for a beginner, also for complex structures of web applications for advanced. Laravel is based on a symfony and many libraries are already writed