This file is one directory deeper in the Web site in the subfolder. You can see that the require statements for the header/footer do look one directory "back up" to properly locate the header/footer. (require '../header.php') View the HTML source code for this page in your browser and you will see that the header/footer code is indeed included in this page.

But this page is obviously messed up bigtime. Here is the problem. The header looks for the stylesheet and graphic in the same folder that the header is in. View the source code view for this page in your browser and you will see that the relative URLs for the stylesheet and graphic are just the file names. But that is no longer accurate since this page is one directory deeper in the site in the subfolder. Yikes!

This makes perfect sense if you step back and look at the issue in general terms. The header/footer point to resources (styles.graphics. ...) relative to where the header/footer is located. But when pages deeper into the site use the header/footer in a deeper context, the relative URLs in the header/footer pointing to those resources are no longer accurate.

Fortunately, there is an easy soluiton as correct.php explains.