Hi Stefan
I should have started my last comment by saying thank you for uploading your work here. I feel like I'm very close to understanding and using it.
When I subscribe to push notifications it works successfully. The database has a record there and when I view PNTestPushSingle.php there is a log:
fcm.googleapis.com: The
request to send a push message was received and accepted.
And count of subscriptions = 1.
But I have never actually seen a notification pop up. And I can't seem to send any additional notifications. If I refresh PNTestPushSingle.php, nothing happens.
The code inside PNTestPushSingle.php suggests it should send a notification saying "...first text to display" and/or an elephant.png image.
But I haven't seen or received any such notifications.
Basically, after setting it all up and subscribing to notifications and having that succeed. I don't actually know how to send a notification