How to make order notifications in your online store?

Question

Online shopping

I made an online store in html, I would like to make sure that notifications come to my phone when ordering, how to do it?

Answer 1

How to send notifications from the site via SMS?

Answer 2

sms.ru

Answer 3

See how it will be used.
It can be a separate language (Elixir for Erlang), with its own compiler\vm.
It can be a template engine (Smarty\Twig\etc).
It could be DSL.
How to call and how to "replace" depends on the context and how it is used.
There can be regular expressions, and your own preprocessor / compiler, etc.