How to make file get contents take into account special characters?

Question

PHP

some:
hello\n

echo file_get_contents("some");

output:
hello\n

and I need special characters to be taken into account
hello

Answer 1

$text = str_replace(['\n', '\r'], ["\n", "\r"], $text);

But this option does not take into account \\n \\r

Answer 2

two letters: a slash and a small latin en, what do you think are special characters? Bravo!