Assignment 5: Using form to update an external file In a HTML document, use PHP to create a form that will allow users to input their full name, city, and comment. Upon submit the data will be added (append) to existing data in another PHP page. Finally, the external page will show its results underneath the form, most recent first, in the first page, like it would happen in a blog, for instance. Assignment 5: Using form to update an external file In a HTML document, use PHP to create a form that will allow users to input their full name, city, and comment. Upon submit the data will be added (append) to existing data in another PHP page. Finally, the external page will show its results underneath the form, most recent first, in the first page, like it would happen in a blog, for instance