3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types=1); function f($traversable) { var_dump($traversable); foreach ($traversable as $k => $v) { var_dump($k, $v); } } $arr = ['zero', 'one']; f($arr); echo PHP_EOL; $obj = (object) $arr; f($obj);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(2) { [0]=> string(4) "zero" [1]=> string(3) "one" } int(0) string(4) "zero" int(1) string(3) "one" object(stdClass)#1 (2) { ["0"]=> string(4) "zero" ["1"]=> string(3) "one" } string(1) "0" string(4) "zero" string(1) "1" string(3) "one"

preferences:
82.54 ms | 1545 KiB | 4 Q