Description:
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---
From manual page: http://www.php.net/cachingiterator.getinneriterator#refsect1-
cachingiterator.getinneriterator-description
---

The method signature is documented as:

> public void CachingIterator::getInnerIterator ( void )

This is incorrect; the return type should be `Iterator`, per the documentation in 
the "Return Values" section:

> Returns an object implementing the Iterator interface.

The corrected signature would look like this:

> public Iterator CachingIterator::getInnerIterator ( void )

Test script:
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N/A

Expected result:
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N/A

Actual result:
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N/A