3v4l.org

run code in 300+ PHP versions simultaneously
<?php function g1() { yield 1; yield 2; } function g2() { $a = (yield "a"); var_dump($a); $b = (yield "b"); var_dump($b); } $g1=g1(); $g2=g2(); foreach($g1 as $v) { var_dump($g2->send($v)); }

preferences:
49.63 ms | 402 KiB | 5 Q