title: wamp server cannot open Localhost
body: <p>I am new in php and now i installed wampserver 2.2 application and when i click to Localhost option, the "Unable to connect" page shown in my Firefox browser.</p>
  
  <p>this is my www folder:</p>
  
  <p><img src="https://i.stack.imgur.com/WnPSM.png" alt="enter image description here"></p>
  
  <p>And this is my <code>index.php</code> file:</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
  &lt;title&gt;  Hello To PHP Learning! &lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
  
  &lt;?php
      echo  'Hello World';
  ?&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>