Getting an object to work with array_walk_recursive in PHP

Question

I have an object that implements IteratorAggregate and ArrayAccess, which internally contains an array that will be generated when it is accessed.

I want to use array_walk_recursive on this object, but it does not seem to work. It seems that this is either impossible due to the implementation of array_walk_recursive or I just need to add an interface to my object. What am I missing?

It does work with ArrayObject. So you might have luck with implementing Traversable and Countable. But OTOH most PHP array functions are a bit recusant with array objects. — mario
– mario, Commented Nov 14, 2010 at 19:58
@mario: You can't directly implement Traversable. It is either implemented by Iterator or IteratorAggregate. — NikiC
– NikiC, Commented Nov 14, 2010 at 20:30

AndreKR · Accepted Answer · 2010-11-14 19:46:26Z

2

Since array_walk_recursive operates on arrays, your object probably has to implement the ArrayAccess interface.

answered Nov 14, 2010 at 19:46

AndreKR

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3 Comments

Barum Rho Over a year ago

Sorry, forgot to mention that I implemented ArrayAccess as well.

AndreKR Over a year ago

Then it will work, unless you have an error in your implementation. Remenber that for array_walk_ recursive to work your offsetGet implementation has to return an array or an object of your class.

Barum Rho Over a year ago

I realized that the problem is that when I have an array mixed with my object (nested) array_walk_recursive does not work, at least with my current implementation.

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