If like me you were trying to find the absolute path for your files when setting up your zen cart install, I found the following script to be super useful. Can be used anywhere, not just for zen cart!
Just make a blank php file in folder you want to get the path of and paste this:
<?php $path = getcwd(); echo "This is the absolute path: "; echo $path; ?>
Then just browse to the file and see the path. Quick ‘n easy!