A php script that can be used on a Synology Nas to revive Pushover notifications. https://styxit.com/2014/05/10/synology-pushover.html

synology-pushover.php

<?php
/************************************/
/********** CONFING START ***********/

// Only allow request made by localhost?
// Set this to false if this script is not running on your synology webserver (less secure)
$localOnly = true;

/********** CONFING END *************/
/************************************/
echo time();
// Validate httpHost and/or remote addr?
if ($localOnly) {
  if ($_SERVER['HTTP_HOST'] != 'localhost') {
    // Not locahost
    die;
  }
}

// Set variables
$options = array(
  'message' => isset($_GET['text']) ? $_GET['text'] : false,
  'token' => isset($_GET['appkey']) ? $_GET['appkey'] : false,
  'user' => isset($_GET['userkey']) ? $_GET['userkey'] : false
);
// Remove empty values
$options = array_filter($options);

// Quit if not exactly 3 get values were found
if (count($options) != 3) {
  echo 'invalid options';
  die;
}

// Do Pushover curl
curl_setopt_array($ch = curl_init(), array(
  CURLOPT_URL => "https://api.pushover.net/1/messages.json",
  CURLOPT_POSTFIELDS => $options
));
curl_exec($ch);
curl_close($ch);
?>

would it possible to have this for pushbullet, would you mind create a second script for pussbullet?

I think only the pushbullet curl command is different, described here:
https://docs.pushbullet.com/v2/pushes/