Online PHP editor | refs for RUKAv

<?php function count_to_ten() { $t = yield; echo '$'.($t); yield from seven_eight(); return 'ok'; } function seven_eight() { foreach ([1, 2, 3] as $k => $v) { yield $v; } } $gen = count_to_ten(); foreach ($gen as $k => $num) { echo $gen->send('t'); echo "\n-$k -> $num \n"; } var_dump( $gen->getReturn());