Disable autovivification on false

Hi Internals, I'd like to start a discussion on the following RFC https://wiki.php.net/rfc/autovivification_false Particularly, I am looking for opinions on whether this behaviour should be left alone, should be disabled on false, or should be disabled on null and false, and left only for undefined variables. Autovivification is very useful in PHP, especially with multidimensional arrays and loops. However, the question is should we allow it on false and null values going forward. Kind Regards, Kamil Tekiela