Re: Strange error on mysql_fetch_array
| From: | Ronny Mandal | Date: | Wed, 27 Jun 2001 14:25:05 +0000 |
| Subject: | Re: Strange error on mysql_fetch_array | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-55393@lists.php.net to get a copy of this message | ||
----- Original Message -----
From: "David Robley" <huntsman@www.nisu.flinders.edu.au>
To: <tjacobs-php@codegnome.org>; "PHP General" <php-general@lists.php.net>
Sent: Wednesday, June 27, 2001 8:47 AM
Subject: Re: [PHP] Strange error on mysql_fetch_array
> On Wed, 27 Jun 2001 06:31, tjacobs-php@codegnome.org wrote:
> > The following code fragment works properly, in that I get the output
> > I'm expecting. However, if I don't disable error messages with @, I get
> > an error message from PHP saying: "Warning: Supplied argument is not a
> > valid MySQL result resource in /var/www/htdocs/cgcm/test2.php on line
> > 9."
> >
> > How can the resource be invalid if I'm getting the results back? I'd
> > appreciate any explaination.
> >
> > $connection_id = @mysql_connect ('localhost', 'root') or
> > die('No
> > connection.');
> > $database_id = @mysql_select_db ('cgcms', $connection_id) or
> > die('No connection.');
> >
> > ...
> >
> > $result_id = @mysql_query("DESC $table_name $field_name");
> > $row = mysql_fetch_array($result_id); # This is line 9
>
> Try using mysql_error() to see if there is some feedback from mysql. Put
> it just after your mysql_query().
>
> --
> David Robley Techno-JoaT, Web Maintainer, Mail List Admin, etc
> CENTRE FOR INJURY STUDIES Flinders University, SOUTH AUSTRALIA
>
> Common sense isn't...
>
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Hmm, maybe the prefix '@' suppresses the returning link-identifier. Just a
suggestion!
--
RM