Alessio Campanelli

Here the simple code in PHP

<?php

require 'autoload.php';

use Parse\ParseObject;
use Parse\ParseQuery;
use Parse\ParseACL;
use Parse\ParsePush;
use Parse\ParseUser;
use Parse\ParseInstallation;
use Parse\ParseException;
use Parse\ParseAnalytics;
use Parse\ParseFile;
use Parse\ParseCloud;
use Parse\ParseClient;

$app_id = "my_app_id_get_from_parse_settings";
$rest_key = "my_rest_key_get_from_parse_settings";
$master_key = "my_master_key_get_from_parse_settings";

if (version_compare(PHP_VERSION, '5.4.0', '<')) {
  print "the system require php 5.4.0 or higher";
}

ParseClient::initialize( $app_id, $rest_key, $master_key );

//$object = ParseObject::create("TestObjectFromPhp");
//$object->save();

$bodyPost = file_get_contents('php://input'); 
    $messagePush = "";
    if($bodyPost != null){
        $obj = json_decode($bodyPost);  
                $messagePush = $obj->{'messagePush'};
        }

$data = array("alert" => $messagePush,
              "badge" => "Increment",
              "sound" => "default "
);

// Push to Channels
ParsePush::send(array(
    "channels" => ["rasperryMovements"],
    "data" => $data
));

With this sample, it's possible to send a push notification with a simple REST service (in POST). Naturally we must implement the client part.