3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_export((object)[(object)[]]);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14, 8.4.1
(object) array( '0' => (object) array( ), )
preferences:
61.94 ms | 407 KiB | 5 Q