PHP is one of the most widely used web programming languages today, combining its code with HTML5, implementing dynamic applications in a professional way. It is a multiplatform language that can be run on all devices that have sufficient capacity to connect to any database. It is also considered free and multipurpose software. This work aims to help understand how an application is composed using the technology presented by PHP. You do not need knowledge of other programming languages, since developed cases are proposed that go from the most basic to the complex