How to Create Web Push Notifications - Full Tutorial | Felix Gerschau
How to Use a PHP Push Notifications Class on Your Web Site in 2023 with this Send Web Push Notifications Tutorial - PHP Web Push Notifications Server package blog - PHP Classes
WebSocket.CZ - Web notification examples
Complete Beginner's Guide To Web Push Notifications | WebEngage
Push Notifications ❄ PWAdvent
Creating Real Time Notification System in PHP and AJAX