differences in using equality operator in php
<p>can anybody tell me the difference of using '===' as</p>

<pre><code>if (null === $this-&gt;getName())
</code></pre>

<p>and</p>

<pre><code>if ($this-&gt;getName() === null )
</code></pre>

<p>if $this->getName is already defined.</p>

<p>thanks in advance</p>
