In what scenarios would it be necessary to protect individual PHP files using .htaccess directives for enhanced security measures?

Protecting individual PHP files using .htaccess directives may be necessary in scenarios where sensitive information or functionality is contained within the files, such as database connection details or critical business logic. By restricting direct access to these files through the web server configuration, you can enhance security measures and prevent unauthorized access or exploitation. ```apache <FilesMatch "\.php$"> Order allow,deny Deny from all </FilesMatch> ```