Re: Testing for NULL
| From: | Andrey Hristov | Date: | Mon, 18 Mar 2002 19:18:41 +0000 |
| Subject: | Re: Testing for NULL | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-88989@lists.php.net to get a copy of this message | ||
if (!isset($login)){
echo "login undefined";
}
Best regards,
Andrey Hristov
----- Original Message -----
From: "Jesse Warden" <jwarden@theartifex.com>
To: <php-general@lists.php.net>
Sent: Monday, March 18, 2002 9:09 PM
Subject: [PHP] Testing for NULL
> Hi, I am new... hope I am using this list correctly.
>
> I am trying to test for a null value, and if it is null, then to use a
> default value instead. The login page that I have, I want to show nothing
> in the username field unless it is passed a username from another PHP page
> via the header function. However, every time I write:
>
> if($username == null){
> echo "Username is null";
> }
>
> It executes the echo, but only after giving me an error. Is there a way to
> suppress this error or check for an undefined instead?
>
> J
>
>
> ** Scanned for Viruses **
>
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