Send push notification from PHP server

android.php

<?php
$url = "https://fcm.googleapis.com/fcm/send";
$tokens = array('token1', 'token2'); // your devices tokens (limit 500)
$serverKey = 'ApiKey'; // Server Api Key from Firebase Console
$notification = array(
  'title' => $title, // message title
  'body' => $body, // message body
  'sound' => 'default', // sound
);
$arrayToSend = array(
  'registration_ids' => $tokens, 
  'notification' => $notification,
  'priority '=> 'high'
);
$json = json_encode($arrayToSend);
$headers = array(
  'Content-Type: application/json',
  'Authorization: key='. $serverKey
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,"POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);
if (!$response) {
  var_dump('CURL error: ' . curl_error($ch));
  die();
}

curl_close($ch);

$result = json_decode($response, true);
if ((int)$result['success'] == 1)
{
  echo 'Notifications sended successfully!';
}
else
{
  foreach ($result['results'] as $key => $data)
  {
    var_dump($data['error'] . ' for key ' . $tokens[$key]);
    die();
  }
}
?>

ios.php

<?php
$token = 'DeviceToken';
$apiHost = 'api.development.push.apple.com'; // Only for development purposes. Make sure your application is in a production environment and set the value to "the api.push.apple.com variable" when your app will be available in AppStore
$apnsCert = '/path/to/cert.pem;
$apnsPass = 'certificate pass';

$payload['aps'] = 
  array(
    'alert' => [
      'title' => $title,
      'body' => $message
    ], 
    'badge' => 0, 
    'sound' => 'default'
  );

$payload = json_encode($payload);

exec('curl -d \''.$payload.'\' --cert '.$apnsCert.':'.$apnsPass.' -H "apns-topic: com.pizzasan" --http2  https://' . $apiHost . '/3/device/'.$token, $output);
var_dump($output);
?>