OneSignal PHP User-to-User Notifications Class

Send push notifications between your users in minutes — no Composer, no bloat, just one clean PHP file.

Built on the latest verified OneSignal REST API v2, this class is perfect for chat apps, social platforms, marketplaces, or any PHP project that needs real-time user notifications.

WHAT YOU GET- OneSignal.php — main class, clean OOP, ~200 lines- Admin Panel — ready-made PHP dashboard to send notifications from a UI- Full HTML Documentation — open in browser, code examples included- 5 Example Files — copy-paste ready for every use case- README.txt — quick start guide

REQUIREMENTS- PHP 8.0 or higher- cURL extension (enabled by default on most servers)- Free OneSignal account at onesignal.com

QUICK STARTrequire_once 'OneSignal.php';$push = new OneSignal('APP_ID', 'API_KEY');

$push->message('1', '42', 'Hey!', 'Alice');$push->activity('7', '42', 'liked', 'Bob');$push->friendRequest('7', '42', 'Bob');

if ($push->ok()) {echo 'Sent: ' . $push->lastResponse()['id'];}

API VERIFIEDAll endpoints, headers and parameters have been tested against the official OneSignal REST API v2 documentation.- Base URL: https://api.onesignal.com- Auth: Authorization: Key- Targeting: include_aliases with external_id