Alternative for PHP linter
<p>Basically, php -l does not detect any syntax error, given this code:</p>

<pre><code>&lt;?php
date®;
?&gt;
</code></pre>

<p>Obviously, it's an error when you execute it.</p>

<p>Is there any alternative or additional linter to use for PHP?</p>

<p>EDIT:</p>

<p>Thanks alot guys. Apparently it <em>is</em> a valid constant name, as the documentation suggests ([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*).</p>
