I've posted the first part of a tutorial that I've been working on for a while here:
http://www.twxscripts.com/twxarrays1It's my attempt to teach array basics. There is more to follow, but I hope that some of you will have that "AHA!" moment as you read this.
And since while loops go hand and hand with array usage, I've provided clear and concise examples of iterating over an array using a while loop.
And believe it or not, part 1 even delves into multi-dimensional arrays and nested while loops, all within about 3 paragraphs. Wreckless, I know.
Have a read, and let me know if you learned anything.
+EP+