Re: if(isset($a)) vs if($a)
| From: | Mark | Date: | Sun, 16 Sep 2001 17:55:00 +0000 |
| Subject: | Re: if(isset($a)) vs if($a) | ||
| References: | 1 2 3 4 5 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-67511@lists.php.net to get a copy of this message | ||
On Sun, 16 Sep 2001 09:18:23 -0700, CC Zona wrote:
>In article <200109152115.f8FLFUO25531@zeus.mminternet.com>,
> maggelet@mminternet.com (Mark) wrote:
>
>> >if(isset($) and !empty($a) and !$a)
>>
>> this is the same as if(!empty($a))
>>
>> >or
>> >
>> >if(isset($) and $a===FALSE)
>>
>> this is the same as if(empty($a))
>
>Aside from accidentally omitted the "a" in the var name...oops...)
>
>No, they're not the same thing if you have error reporting set to
>E_ALL.
>If $a is not set, calling empty($a) or !$a produces a warning.
calling empty($a) does not give a warning.
--
Mark, maggelet@mminternet.com on 09/16/2001