n=1 is easy, but what's a generic solution when n=whatever? A few ways I can iterate through a collection... can any of these be applied to the solution of multi-d arrays? It should hit every possible combination along the way...

1. traditional procedural: for loops
2. OO: while ($item = $collection->next)...
3. Stack: while (shift @collection)...
4. That Ruby thing with 'yield' (passing a closure)
5. returning a closure which acts as a next: while ($fetch->() )
6. can't think of a six...

In reply to Iterator for multidimensional arrays by jcupp

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