php-8.0.30-src/Zend/tests/generators/yield_from_iterator.phpt

--TEST--
yield from with an (Array)Iterator
--FILE--
<?php
function g() {
    yield 1;
    yield from new ArrayIterator([2, 3, 4]);
    yield 5;
}

$g = g();
foreach ($g as $yielded) {
    var_dump($yielded);
}
?>
--EXPECT--
int(1)
int(2)
int(3)
int(4)
int(5)