Re: test variable value?
| From: | Rodolfo Andrade | Date: | Wed, 11 Jan 2006 10:42:38 +0000 |
| Subject: | Re: test variable value? | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-228462@lists.php.net to get a copy of this message | ||
How about...
if (!$x){
echo "x is empty";
}
Regards,
Rodolfo Andradee
----- Original Message -----
From: Stut
To: William Stokes
Cc: php-general@lists.php.net
Sent: Wednesday, January 11, 2006 8:08 AM
Subject: Re: [PHP] test variable value?
William Stokes wrote:
>Hello
>
>What is the best way to determine if a variable has no value?
>
>if ($var== '')
>
>or
>
>if ($var== 'null')
>
>
>Can 'null' be used here?
>
>
Depends what you mean by no value. I suggest you read
http://php.net/is_null, http://php.net/empty and http://php.net/isset.
-Stut
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