pushbullet-notifier/app.php

<?php

require 'vendor/autoload.php';
$loader = new josegonzalez\Dotenv\Loader(__DIR__.'/.env');
$loader->parse();
$loader->putEnv();

$token = getenv('PB_TOKEN');

try {
    $pushbullet = new Pushbullet\Pushbullet($token);
} catch (\Exception $e) {
    print $e->getMessage() . PHP_EOL;
}

$pushResult = $pushbullet
    ->device('Google Pixel XL')
    ->pushNote('Hello!', 'How are you?')
    ;
print_r($pushResult);