title: PhpStorm not recognizes a PHP class
body: <p>this morning I faced with this issue and I don't know really how to solve this.</p>
  
  <p>Here's an <a href="http://i.stack.imgur.com/Ampmj.png" rel="noreferrer">image</a> and a video: <a href="http://screencast.com/t/2ubAbwPj6" rel="noreferrer">http://screencast.com/t/2ubAbwPj6</a></p>
  
  <p>P.S. When I refactor the file to "filename.PHP" PhpStorm detects it but if I change it back to "filename.php" PhpStorm won't detect it as a PHP file.</p>