Re: isset() and !=NULL
| From: | David Risner | Date: | Fri, 26 Mar 2004 19:06:27 +0000 |
| Subject: | Re: isset() and !=NULL | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-181580@lists.php.net to get a copy of this message | ||
On Fri, 26 Mar 2004 10:40:43 -0800, "Marcjon Louwersheimer"
<marcjon@fastmail.fm> said:
> Is there an easier way to do
> isset($variable) AND $variable != NULL
> ? I use this alot in my if statements, and I was wondering if there's an
> easier way to do it, maybe with a single function? Oh and another
> question... how does if ($variable) work? When does it evaluate true?
Check out the is_null function. Itd seems to combine the two.
http://www.php.net/manual/en/function.is-null.php
and
http://www.php.net/manual/en/language.types.null.php#language.types.null.syntax
--
David G. Risner
Software Engineer
California State University, Los Angeles
http://www.risner.org/david/