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 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.6

preferences:
58.19 ms | 841 KiB | 4 Q