yeh i tried restarting... but i get to see the following

 /etc/init.d/apache2 restart
 * Restarting web server apache2        
   apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
 ... waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
                                                  
Thanks and Regards,
Amrita

On Wed, Jun 1, 2011 at 11:50 AM, Marcus Bointon <marcus@synchromedia.co.uk> wrote:
On 1 Jun 2011, at 08:12, Amrita Jayakumar wrote:

I have deployed this code into a php file phcass.php in the ubuntu machine in the location /var/www/vishnu/. But nothing happens when i execute the file through the browser. Neither can i find the data inserted in the column family 'Users'.
can anyone help???

Did you restart apache after changing that PHP config?

Are you certain it's running at all? instead of that echo, try var_dump($column_family);

Marcus