====== Get path info ======
  * [[http://php.net/manual/en/function.pathinfo.php|pathinfo()]] - retrieve info from URL
  * [[http://php.net/manual/en/function.getcwd.php|getcwd()]] - get working directory

<code linenums>
$_SERVER['DOCUMENT_ROOT'] // www base path

echo $_SERVER['DOCUMENT_ROOT'] . $_SERVER['REWRITEBASE'] . '<br>';
</code>