require_once vendor/autoload.php;
$post_data=array("userid":1,
"title":"friend Request",
"content":"John Doe sent you a friend request",
"icon":"https://mqtt-chat.com/photos/12542565.png",
"data":"{\"param1\":1,\"param2\":2}");
$n=new telifoun\mqttchat\notifications();
$result=$n->add($post_data);