doujiao3998 2008-11-24 21:14
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PHP对象作为虚拟数组

I have an object that implements ArrayAccess, Iterator and Countable. That produces a nigh-perfect array masking. I can access it with offsets ($object[foo]), I can throw it into a foreach-loop, and many other things.

But what I can't do is give it to the native array iterator functions (next(), reset(), current(), key()), even though I have implemented the required methods from Iterator. PHP seems to stubbornly try to iterate through its member variables, and entirely disregards the iterator-methods.

Is there an interface that would hook the object to the remaining array-traversing-functions, or am I stuck with what I have?

Update: IteratorAggregate doesn't seem to be the answer either. While it is used in foreach-loops, the basic array iterator functions don't call the methods.

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  • dongqiyou0303 2008-11-24 21:55
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    Recent changes in PHP prevent ArrayIterators form being manipulated using the standard array functions (reset, next, etc).

    This should be restored soon: http://news.php.net/php.internals/42015

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