How to add new line break in content-type : text/plain document generated by php?

Question

I want to add a link break in a text file. How do I do that?

My code is as follows.

<?php 
header('Content-Type: text/plain');
?>
Line 1
Line 2
Line 2

I have tried following.

1. echo 'Line'."\n\r"
2. echo nl2br('Line'."\n\r")
3. echo 'Line' . PHP_EOL
4. echo 'Line' . "<br/>"

Nothing is working.

Answer 1

\\n for new line when content-type is text/plain

<br> for new line when content-type is text/html