<?php
$single_quote = 'How are you?\nI am fine.';
$double_quote = "How are you?\nI am fine.";
// How are you?\nI am fine.
echo $single_quote;
/*
How are you?
I am fine.
*/
echo $double_quote;
?>
Like this?
The COPY button is the only missing thing. But for code-sharing, the current settings work just fine.