Once you have a design for your educational platform, you can start coding it with PHP. Depending on the complexity of your platform, you may need to use different tools and techniques. To set up your web server and database, you can choose between a local or remote server, and a relational or non-relational database. Then, you can use HTML, CSS, and JavaScript to create the layout, style, and interactivity of your web pages. Additionally, frameworks and libraries such as Bootstrap, jQuery, or React can be used to simplify and enhance your front-end development. On the back-end side, PHP is used to create the logic, functionality, and security of your web application. Frameworks and libraries such as Laravel, Symfony, or CodeIgniter can be employed to speed up and improve your back-end development. Lastly, PHP is used to communicate with your database and manipulate data, as well as generate dynamic content and respond to user requests and actions.