[nickbauman]

Not really. AppEngine is unique in this way. It has a combination of features and constraints that make it very difficult to replicate what it can do elsewhere. GAE is a product not just a collection of APIs.

The closest thing to AppEngine out there is ElasticBeanstalk and Heroku, which resemble each other far more than they resemble AppEngine. Good luck.

[maartendb]

AppEngine doesn't support php7. Call me old fashioned but that's a show stopper for me.

[nickbauman]

You are, indeed, old fashioned. But GAE has a Java SDK, so you can run PHP on GAE after all.

https://github.com/collegeman/php-in-java