New APNS Provider API and PHP

Question

I started creating some code based upon this for sending push notifications from PHP.

However now that I have understood there is a new API which utilizes HTTP/2 and

Answer 1

To resolve HTTP/2 client preface string missing or corrupt errors in PHP 5.6 I created an Apache and CLI PHP Docker image that you might want to rely on or just look up what I did in the Dockerfile to build your own. Same can probably apply to PHP 7.0 although I haven't tried.