RE: [PHP-DEV] wrong implementation of isset()?

I have always (although I know this wasn?t the case prior to PHP 4) thought that unset() removed the variable from memory. Clearly this can?t be the case if it has a value of NULL. But if this is the way things work then is_null() ought to be an alias of isset(). -Marten. Icq# 38863127 -----Original Message----- From: Andrei Zmievski [mailto:andrei@ispi.net] Sent: Tuesday, February 06, 2001 8:43 PM To: Bjoern Hoehrmann Cc: Martin Jansen; PHP Development Mailing List Subject: Re: [PHP-DEV] wrong implementation of isset()? On Tue, 06 Feb 2001, Bjoern Hoehrmann wrote: > >NULL == not set > > Great analysis. What about answering the question? Stanislav Malyshev > said some months ago this is 'strange', see the discussion around bug > 6076. Tell us at least, why this actually isn't strange. By default, any unset variable has value NULL - and isset(NULL) returns false to indicate that. Similarly, assigning NULL to a variable unsets it. -Andrei * The great thing about standards is that there are so many to choose from. * -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net For additional commands, e-mail: php-dev-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net