2.8.2.1. Instead of results from PHP scripts, their content is displayed in browser

This may be caused by directives in the .htaccess file that attempt to override the PHP handler. An example of such a directive is: SetHandler php56-cgi.

To resolve this issue, check the contents of the .htaccess file for these directives. If they are present, you must either comment them out by adding a # symbol at the beginning of the lines containing them, or delete them.