3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(unserialize(serialize((object) array("\0*\0a" => "b"))));
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 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
object(stdClass)#1 (1) { ["a":protected]=> string(1) "b" }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
object(stdClass)#1 (1) { ["a:protected"]=> string(1) "b" }
Output for 4.3.5 - 4.3.11, 4.4.0 - 4.4.9
object(stdClass)(1) { ["*a"]=> string(1) "b" }
Output for 4.3.0 - 4.3.4
object(stdClass)(1) { [""]=> string(1) "b" }

preferences:
236.27 ms | 401 KiB | 344 Q