How can XAMPP and Apache configurations affect the ability to run PHP scripts within HTML files?

XAMPP and Apache configurations can affect the ability to run PHP scripts within HTML files by not recognizing the PHP code within the HTML file. To solve this issue, you need to configure Apache to interpret PHP code within HTML files by using the AddType directive in the Apache configuration file. ```apache <IfModule mime_module> AddType application/x-httpd-php .html </IfModule> ```