I just finished working on a site. Everything is working fine on the local server but the page won't open if I use
HTML and embeded PHP goes here...
Aha! Try this instead:
The backslash is invalid on Linux systems, but will work fine on Windows. Switching to the forward slash should work on both. My guess is that your program is exiting early with a fatal error, and if you check your web server logs, you'll see the problem.
require_once is a keyword, I tend to use it without brackets, even though brackets will work. There are circumstances in which calling it in a function context is necessary, but this isn't one of them.