title: How can I find unused functions in a PHP project
body: <p>How can I find any unused functions in a PHP project?</p>
  
  <p>Are there features or APIs built into PHP that will allow me to analyse my codebase - for example <a href="http://ie.php.net/manual/en/language.oop5.reflection.php" rel="noreferrer">Reflection</a>, <a href="http://php.net/manual/en/function.token-get-all.php" rel="noreferrer"><code>token_get_all()</code></a>?</p>
  
  <p>Are these APIs feature rich enough for me not to have to rely on a third party tool to perform this type of analysis?</p>