Google App Engine standard environment to Cloud-SQL Second Generation instance

Question

I consider starting a PHP project in App Engine and would like to use Cloud 2SQL in the second generation.

Now I am confused if this is possible or not, since I have found different information on the google sites.

https://cloud.google.com/appengine/docs/php/cloud-sql/

Note: Access to Google Cloud SQL Second Generation instances can be granted only for apps running in the flexible environment. Learn more.

https://cloud.google.com/sql/docs/dev-access

App Engine standard environment to a Second Generation instance You connect from Google App Engine standard environment) to Second Generation instances by completing the following steps:

• Granting the application access (if required)
• Updating your application to provide the appropriate connection string.

Is it now possible or not?

Answer 1

It is possible to use Cloud SQL v2 on App Engine standard.

Check out Terrance Ryan's (Developer Advocate for GCP) blog post on this topic [0], more specifically:

"If you are an App Engine customer and looked at v2 before, it did not support App Engine. However, that appears to have changed: you can now access Cloud SQL v2 from App Engine standard environment, or App Engine flexible environment."

[0] http://terrenceryan.com/blog/index.php/cloud-sql-v1-vs-v2/