PHP Two Dimensional Array Collection: Manage value collections in two dimensional arrays

This class can manage value collections in two dimensional arrays.

It can perform operations to manipulate a list of array items.

Currently it can add an array of items to the collectiomn, reindex the collection, get the current or the next item, go to the first, last, previous, last, or a specific item by position number, move or remove items, add or update items, sort the items by a criteria, search for items by a regular expression in specific item fields.