Using the .= operator in PHP
<p>This is a very basic question, but I'm trying to figure out some best practices. Is the <code>.=</code> operator just a way to shorten some code like this:</p>

<pre><code>$a = 'John';
$b = 'Doe';
$n = $a.' '.$b';
</code></pre>

<p>to this:</p>

<pre><code>$n = 'John';
$n .= ' Doe';
</code></pre>

<p>It seems like it makes sense, but I want to make sure I'm not missing anything. Thanks! :)</p>
