3v4l.org

run code in 500+ PHP versions simultaneously
<?php function foo(): iterable { return ['a']; yield 'b'; } foreach(foo() as $v) { echo $v; }
Output for 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9

preferences:
66.52 ms | 876 KiB | 4 Q