in the end i found a solution First, make sure MySQL server is running. Type the following command at a shell prompt:
/etc/init.d/mysql status
If MySQL is not running, enter:
/etc/init.d/mysql start
If MySQL is not installed, type the following command to install MySQL server:
apt-get install mysql-server
Make sure MySQL module for php5 is installed:
dpkg --list | grep php5-mysql
To install php5-mysql module enter:
apt-get install php5-mysql
Next, restart the Apache2 web server:
/etc/init.d/apache2 restart