What best practices should be followed when installing PHP scripts that require register globals?

When installing PHP scripts that require register globals, it is best practice to disable the use of register globals for security reasons. This can be done by setting the `register_globals` directive to `off` in the php.ini file or using `.htaccess` file. This helps prevent security vulnerabilities such as injection attacks and unauthorized access to variables.

// Disable register globals in php.ini
register_globals = Off;