What is the difference between php and html file extensions?

Question

I am having a .php file with the following code. While I am changing the extension of the file as .html then also it is behaving in the same way. C

Answer 1

As far as I Know, depending on the extension the web server will process your file on one way or another. Also, for example, you could have a PHP file that doesn't generate any HTML output, but it redirects to another file.

If you want to give a *.html ended page, you could do it programatically.