If we include a PHP script in an HTML file, we need to save it with a .php extension.

Why might that be?

The extension tells the server that it needs to process the fileBrowsers can't display files with a `.html` extensionServers can't store files with a `.html` extension

Right! The .php extension tells the server that there's PHP code in the file that it needs to process.

Isn't storing and displaying HTML files what servers and browsers do?