In this tutorial, we learn how to get started with the AdWords API PHP client library. First, download the library by going to the API documentation online. From here, set the authentication information and then open up the library. Now, save the changes to the file and use a sandbox environment. The examples folder has all versions that the API library supports. You can browse the campus folder with the search button, just type in the command of what you want to see. After you do this, you can browse through everything that is open to you and you're finished with the set up!