Weird variable 'bug' for protectedimages

[chrisjlocke]

Tried to upload some pictures on a new install, but it wouldn't work - mkdir was failing to create the 'cachedimages' directory.

A bit of investigation led to the protected_images directory variable not being set. Bizarre.

To cut a long story short, the php code was
$imagedir = $siteArr[Protected_Images_Directory];

On my server, this doesn't work. It has to be
$imagedir = $siteArr['Protected_Images_Directory'];

ie, the word is in single quotes.

Is this a bug in MonkeyCMS, or is there a setting somewhere I can create to 'force' the original method to work?

This is on php 5.2.10 by the way, so don't know if its a recent change...?