MailChimp is an email marketing service that is used for designing, sending and managing newsletters. One cool thing about MailChimp is that it offers a variety of ways to easily use its service in your website or project. For example, using a drag-and-drop feature you can create signup forms without writing a single line of code. However, if you want to have the full control over your project let’s put aside the beginner solutions and dive into the code instead. In this post you will learn how to use MailChimp API in PHP.