Expressions: Generator Operations #

Yielding Values #

Generators can yield values using the yield keyword. The expression after the yield keyword is the value to be yielded.

yield $value;

Yielding Key-Value Pairs #

Generators can yield key-value pairs using the yield keyword. The expression after the yield keyword is the key-value pair to be yielded.

yield $key => $value;

Yielding From Another #

Generators can yield values from another iterable using the yield from keyword. The expression after the yield from keyword is the iterable to yield values from.

yield from $iterable;

Yielding Nothing #

Generators can yield nothing using the yield keyword.

yield;