title: 500 Internal Server Error?
body: <p>Recently, I put my project which is php+smarty+mysql in my httpd server. But I encountered an error that says:</p>
  
  <pre><code>500 Internal Server Error
  </code></pre>
  
  <p>My OS is archlinux, and the httpd server and php were installed like this:</p>
  
  <pre><code>sudo pacman -S apache php
  </code></pre>
  
  <p>If I use a test native php file which contains the following:</p>
  
  <pre><code>  &lt;html&gt;
      &lt;head&gt;
      &lt;title&gt;PHP Test Page&lt;/title&gt;
      &lt;/head&gt;
      &lt;body&gt;
      This is Arch Linux, running PHP.
      &lt;?php
        phpinfo();
      ?&gt;
      &lt;/body&gt;
      &lt;/html&gt;
  </code></pre>
  
  <p>it runs correctly. It tells me that the php can work well. But why is my project with smarty not working? Is there any one who has encountered this problem?</p>