The difference between the characters '\n' and '' in php

When writing PHP script code, we often see the two characters \n and
. They both have the function of breaking lines, so what exactly do they mean? What's the difference?

1.\n is to make the source code wrap, but the content displayed by the browser is not;

2.
is to make The content displayed by the browser wraps, but the source code does not.

Example:

PHP code 1:

<?php
echo 0;
echo "\n";
echo 1;
?>

Browser display:

##No newline

View source code:

With line breaks

PHP code 2:

<?php
echo 0;
echo "<br />";
echo 1;
?>

Browser display:

With line breaks

View source code:

Without line breaks

This is the difference between the two.

Recommended tutorial:

php tutorial

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' in php. For more information, please follow other related articles on the PHP Chinese website!