Automattic/php-push

<?php
declare( strict_types = 1 );

require_once dirname( __DIR__ ) . '/vendor/autoload.php';
require_once __DIR__ . '/db-connect.php';

$topic = (string) getenv( 'topic' );

while ( true ) {
    $notifications = [];

    $token = bin2hex( random_bytes( 32 ) );
    save_token( $token );

    for ( $i = 0; $i < 2; $i++ ) {
        $message = bin2hex( random_bytes( random_int( 2, 2048 ) ) );
        $alert   = new APNSAlert( 'Title', $message );
        $payload = APNSPayload::from_alert( $alert );

        $request = APNSRequest::from_payload( $payload, $token, new APNSRequestMetadata( $topic ) );
        save_request( $request );
    }
}