We currently use PHP to get data from Prismic and render the data. Regarding this, I have a few questions:
If the legacy builder is deprecated, is it still possible to use the PHP Client to get the data? And is it still possible to generate slices and content_types etc without the slicemachine?
I am a bit worried, that we need to find a different solution for Prismic if it is only Javascript-orientated.
You will always be able to query the API with whatever technology you want, as it's a REST API, we just no longer maintain the SDK for PHP internally. The SDK is now maintained by th community:
This will still be possible. Deprecated only means that the legacy builder will no longer receive new features.