You develop and upload PHP applications for Google App Engine using the App Engine PHP software development kit (SDK).
The SDK includes software for a web server that you can run on your own computer to test your PHP applications. The server simulates App Engine services, including a local version of Google Accounts and the ability to send email from your computer using the App Engine APIs.
The SDK also includes software to upload your application to App Engine when you are done testing locally.
Please follow the SDK installation instructions appropriate for your platform:
The local development environment lets you develop and test complete App Engine applications before showing them to the world. Let's write some code.
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