Apache Disable PHP for a web site
To disable PHP for a web site edit VirtualHost entry of the web site and add
php_flag engine off
Restart Apache
systemctl restart apache2
Method 2
Add following code in VirtualHost entry
SetHandler none
Restart Apache.
Method 3
Add following code to Apache VirtualHost entry
php_admin_flag engine Off
Then restart the Apache web server. Change folder /var/www/html to your DocumentRoot directory.