Re: what's the diff between if($var1) and if(isset($var1)) and if(!empty($var1))???
| From: | Rasmus Lerdorf | Date: | Tue, 22 May 2001 07:30:36 +0000 |
| Subject: | Re: what's the diff between if($var1) and if(isset($var1)) and if(!empty($var1))??? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-53859@lists.php.net to get a copy of this message | ||
if($var1) is true if $var1 is set and has a non-0 and non-false value
if(isset($var1)) is true if $var1 is set to any value including 0 or false
if(!empty($var1)) is true if $var1 is set to anything except a null-string