php file only blank page without errors
<p>i have got this php file, which shows me only a blank page.
i think i have an syntax error, but i doesn't get any errors.
I set these 2 lines to show me errors, but i get nothing.</p>

<blockquote>
  <p>error_reporting(E_ALL);
      ini_set('display_errors', 1);</p>
</blockquote>

<pre><code>&lt;?php
header('Content-Type: text/html; charset=utf-8');

error_reporting(E_ALL);
ini_set('display_errors', 1);


$var1= $_GET['var1'];   
$var2= $_GET['var2'];
$var3 = $_GET['var3'];

if ( (!empty($var1)) ||  (!empty($var2))  ||  (!empty($var3)) )

       echo "NOT EMPTY";

    } else {

        echo "EMPTY";

    }
?&gt;
</code></pre>