newline on certain character php code example

Example 1: newline in php

<?php
 echo nl2br("If you want that '\n' works. \n Then use nl2br() function!");
 echo "<br> can also be used.";
 echo "nl2br() is in-built function whereas <br> is html tag";
?>

Example 2: php new line

echo "\n";
# it only works in double quotes