How do I display HTML code within an input form?

[Lewis]

I am making a site that has games on it and I want to make the HTML code viewable for the players so they can put it on their websites - How do I put this is a input form - The code is stored in a database and the way to fetch it, is by typing {$game['code']} - But I want this in a text input form that users CANNOT change and with one click will highlight the text so they can just right click and copy