title: What does $config mean
body: <p>I am creating a wordpress blog.I had a Tutorial but i cant uderstand that what does <code>$config['pathSrcInclude']</code> mean?  As in:</p>
  
  <pre><code>include_once($config['pathSrcInclude']."common.inc.php");
  </code></pre>
  
  <p>I am getting an error like this</p>
  
  <blockquote>
    <p>/Warning: include_once() [function.include]: Failed opening 'src/common.inc.php' for inclusion (include_path='.:/usr/local/php5/lib/php') in /home/content/66/8073766/html/thinkblogger.com/popups/photos.php on line 8</p>
  </blockquote>
  
  <p>Please anyone know the reason behind it?</p>