In each directory where you want register_global to be turned off, place the following php.ini file:
register_globals = off
error_log = error_log
log_errors = On
error_reporting = E_ALL & ~ E_NOTICE
expose_php = Off
output_buffering = Off
max_input_time = 60
safe_mode = off
variables_order = "EGPCS"
extension_dir = ". /"
It’s important for you to know that this php.ini have effect only for the directory in which it is located. You should put it in each directory on your web hosting, in which you want to modify register_globals.