title: Permission denied when opening localhost
body: <p>I had recently installed Apache, PHP and MySQL in Ubuntu. And copied the files I created to the <code>var/www</code> directory. But when I open <code>http://localhost</code> it is showing</p>
  
  <blockquote>
    <p>Warning: Unknown: failed to open stream: Permission denied in Unknown on line 0</p>
    
    <p>Fatal error: Unknown: Failed opening required '/var/www/index.php' 
    (include_path='.:/usr/share/php:/usr/share/pear') in Unknown on line 0</p>
  </blockquote>
  
  <p>How can I run my project normally? It was working fine in windows.</p>