3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = (object) array(); foreach (array(1,2,3) as $a->foo => $a->bar[]) { print_r($a); }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
stdClass Object ( [bar] => Array ( [0] => 1 ) [foo] => 0 ) stdClass Object ( [bar] => Array ( [0] => 1 [1] => 2 ) [foo] => 1 ) stdClass Object ( [bar] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [foo] => 2 )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
stdClass Object ( [foo] => 0 [bar] => Array ( [0] => 1 ) ) stdClass Object ( [foo] => 1 [bar] => Array ( [0] => 1 [1] => 2 ) ) stdClass Object ( [foo] => 2 [bar] => Array ( [0] => 1 [1] => 2 [2] => 3 ) )
preferences:
339.19 ms | 402 KiB | 460 Q