The most common setting that clients will want to change are the “register_globals” settings. If you want to enable register_globals, you will need to create a .htaccess file in your site’s main directory (or the main directory of your site that contains PHP hosting scripts). Your .htaccess file should contain the following line:

php_flag register_globals on

If you want to disable register_globals then your .htaccess file should contain the following line:

php_flag register_globals off