Inconsistent results

Hi there,

In the "Adding Active States to the Navigation" lesson, we used a variable named $section to decorate, with an underline, the hyperlink of the page we're visiting, The $section variable is set in each page's script, before the header include, and a php conditional applies a css class "on" to the <li> containing the hyperlink if we are on the corresponding page.

My problem is, when I followed the video exactly, both links underlined no matter what page I was on, and one of the links' background went white.

After a bit of experimentation, I discovered that if I set $section == ""; before the header include in the index file, so that the variable exists and is set no matter what page I navigate to, then the link decorations worked exactly as in the video. But this is not what Randy did in the video.

Is this something Randy may have missed in the video, or is there something about PHP that I need to learn to get the results he showed in the video without the extra step I discovered?

I have a screen snapshot of what was happening if anyone needs to see that, but don't see a way to include it in this comment screen.

Thanks everyone...