Disable php for particular user?

[George]

To disable PHP for a particular user on a Linux server , Put the following code in a .htaaccess file for that user as :

php_flag engine off

Also you can add following code for that in tag of that particular domain in server’s httpd.conf file because user can remove it from .htaccess but its not possible to remove it from httpd.conf without root user.
.

php_admin_flag engine off

[aliya]

Can you please let me know the way to disable php in a given folder without having admin access to the server?