The AppendIterator class
Introduction
Iterate over multiple collections.
Class synopsis
/* Methods */
    
    __construct
    ( void
   )
    
    /* Inherited methods */
    
    IteratorIterator::__construct
    ( Traversable $iterator
   )
   }Table of Contents
- AppendIterator::append — Appends an iterator
 - AppendIterator::__construct — Constructs an AppendIterator
 - AppendIterator::current — Gets the current value
 - AppendIterator::getArrayIterator — The getArrayIterator method
 - AppendIterator::getInnerIterator — Gets an inner iterator
 - AppendIterator::getIteratorIndex — Gets an index of iterators
 - AppendIterator::key — Gets the current key
 - AppendIterator::next — Moves to the next element
 - AppendIterator::rewind — Rewinds the Iterator
 - AppendIterator::valid — Checks validity of the current element