title: Symfony2 config app base url
body: <p>How can i get this base url</p>
  
  <pre><code>http://localhost/Symfony/web/app_dev.php/
  </code></pre>
  
  <p>OR </p>
  
  <pre><code>http://localhost/Symfony/web/app.php/
  </code></pre>
  
  <p>or </p>
  
  <pre><code>http://localhost/Symfony/web/
  </code></pre>
  
  <p>(base url)</p>
  
  <p>in symfony2 config file? can't find at symfony website.</p>