title: Alternative for PHP linter
body: <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>