How to add the current time (and additional parameters) to the sent VK message via api + How to add the pre-source of the link after which the person got to 404?

Question

API

there is such a script
// in the code I am a teapot

//Отправляем сообщение в ВК
$domain = "266212779"; //Доменное имя получателя сообщения в ВК
$token = "0000000000000000000"; // Тут укажите ВАШ токен от приложения ВК
$sbormess = "<br>__ ▂ ▃ ▅ ▇ █ ｡◕‿ ◕｡ █ ▇ ▅ ▃ ▂ __<br>Привет! На сайте появилась ошибка 404<br>Проверь пожалуйста<br>Источник:  ".$_SERVER['REQUEST_URI']."<br>Время: ".$datetime."<br>[ ▇ ▃ ▄ ▅ █ ▇ ▂ ▃ ▁ ▄ ▅ █ ▅ ▃ ▇ ]".$message; // Скрепляем содержимое формы в одну переменную
$query = file_get_contents("https://api.vk.com/method/messages.send?user_id=".$domain."&message=".urlencode($sbormess)."&v=5.69&access_token=".$token);
$url = "http" . (($_SERVER['SERVER_PORT'] == 443) ? "s" : "") . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

How to send the time when an error occurred in a VK message?
I've already googled the whole google - nothing fits (
It's also interesting whether it is possible to transfer the original link (i.e. page) to the message,
now the script sends the link (it has an intermediate page with a timer) on which the user went, but I wonder what would be transmitted page (link) on which there is a link on which the user goes
Is it possible to transfer the type of device?