Re: wrong implementation of isset()?

with all respect to the people who develop the language, I think this is nonsense: $rs = mysql_query( 'select x, y, z from foo where ...' ) ; $x = mysql_fetch_array( $rs , MYSQL_NUM ) ; var_dump( $x[2] ) ; var_dump( isset( $x[2] ) ) ; NULL # well, the column contains null values bool(false) But since (almost) everybody else disagrees, I must be missing something obvious. BTW, does $x = null really equal to unset( $x ) or does isset() just get fooled by its value? At 01:55 7.2. 2001, André Langhorst wrote the following: -------------------------------------------------------------- >>Perhaps, in order to maintain compatibility, we should re-document is_set, >>create the documentation for is_null, and look into creating a new function >>that will determine if something has "ever been inside the namespace", regardless >>of its current value, or absence of value. > >we should just define (and document) this similar to Andrei (note, I do not use the word >"the same" I use that word equal, what means different things): > >NULL equals absence_of_value equals absence_of_variable_in_namespace > >I can imagine no case where people would need to differentiate between NULL and never been in >namespace, we should not allow this, otherwise we would introduce the differentiation into a third >state, non existent, what raises the wtf-factor and is not required as far as I can think > >andré > > >-- >· André Langhorst · t: +49 571 3201801 · >· waldschrott@php.net · m: +49 173 9558736 · >· PHP Quality Assurance · http://qa.php.net · > > >-- >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 > ------end of quote------ ____________________________________________________________ Cynic: A member of a group of ancient Greek philosophers who taught that virtue constitutes happiness and that self control is the essential part of virtue. cynic@mail.cz