How can developers avoid common misunderstandings or confusion regarding Apache and PHP integration?

Developers can avoid common misunderstandings or confusion regarding Apache and PHP integration by ensuring that the PHP module is properly installed and enabled in the Apache configuration file. Additionally, they should double-check that the file extensions for PHP scripts are correctly set up in the Apache configuration.

# Ensure PHP module is installed and enabled
LoadModule php7_module /usr/local/php/modules/libphp7.so

# Set up file extensions for PHP scripts
AddType application/x-httpd-php .php