How to save to db \n?

Question

PHP

Good afternoon!
I need to save and display a multi-line string (textarea) from the database. How to do it right?
Now when sending:
1) I pass the string (HTML->JS->PHP) via fetch
2) I get the string (PHP) via $_GET, I write the data to the database (INSERT)
Now when I receive it:
1) I make a request (JS->PHP ) via fetch
2) receive and return (PHP->MYSQL->PHP) - print_r(json_encode($res, JSON_UNESCAPED_UNICODE))
3) output to textarea(PHP->JS->HTML)
Everything works, but when outputting multiline text hyphens are lost (all in one line). How to correctly display multiline text?

Answer 1

encodeURIComponent

Answer 2

\n is as much a part of a string as text, so watch where it gets lost. I suspect it's around here

json_encode

Answer 3

I get a string (PHP) via $_GET, I write data to the database (INSERT)

Who does that, Carl? If there is a record in the database only POST and for a number of reasons related to security, standards, common sense, etc.