Description:
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---
From manual page:
http://www.php.net/arrayiterator.count
 and
http://www.php.net/class.arrayiterator
---
These pages define ArrayIterator::count() as:

public void count ( void )

However, this method is from the Countable interface, which defines the return type as "int". Likewise on the http://www.php.net/arrayiterator.count page it lists in the "Returns" section: "The number."

The prototype should be:

public int count ( void )

Note: RecursiveArrayIterator, CachingIterator, and RecursiveCachingIterator have the same prototyping issue.