Yield And Keys

By Jerome Tamarelle

<?php

function test() {
    yield from [1, 2, 3];
    yield 4;
}

var_dump(iterator_to_array(test()));

Guess the output.

See Also

• Guess the output [Try me]

PHP Features

• yield
• yield-from
• iterator_to_array

Last updated: 10 September 2026