php4-cli - problem with mysql support

Hi all,

I'm writing a little php script which executed by a cron in every 15 minutes
to extract some data from a mysql database and write to a file located inside
the /etc directory of my linux box.

problem is when i xecute the db connection php script throgh CLI using the
command 'php4 /var/www/db.inc.php', it says ..

Fatal error: Call to undefined function:  mysql_connect() in
/var/www/db.inc.php on line 6

i installed php and other stuff i need with the following debian command.

apt-get install php4 php4-cli mysql-server mysql-client phpmyadmin php4-mysql

i'm tring to rectify this issue since last week, and googled a lot but
still the problem
is same.. 

I'm using Debian(Sarge) .


-- 
vk.