Recursive Generator¶
Generators in PHP, when using the yield keyword, can become recursive through the use of the yield from construct. This allows a generator to delegate part of its iteration to another generator, creating a chain of generators. However, this recursive behavior is only effective when the generator is consumed by an external iteration mechanism such as a foreach() loop or a function like iterator_to_array(). Without such iteration, the recursive yielding will not be triggered or evaluated.
See Also¶
recursive yielding functions [Try me]