RE: [PHP] mysql_num_rows() error
| From: | Sean Malloy | Date: | Fri, 10 Jan 2003 03:27:07 +0000 |
| Subject: | RE: [PHP] mysql_num_rows() error | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-131029@lists.php.net to get a copy of this message | ||
Are you actually checking that the query result is valid?
$conn = mysql_connect('localhost', "xxx", "yyy") or die('Could
not connect
to db');
$result = mysql_query('select * from blah', $conn);
if ($result)
{
echo "Number of rows: " . mysql_num_rows($result);
if (mysql_num_rows($result) > 0)
{
while ($row = mysql_fetch_row($result))
{
for ($i = 0; $i < sizeOf($row); $i++)
{
echo "$i: " . $row[$i] . "<BR>";
}
}
}
}
else
{
echo mysql_error($conn);
}
-----Original Message-----
From: Phil Powell [mailto:soazine@erols.com]
Sent: Friday, 10 January 2003 1:46 PM
To: php-general@lists.php.net; talk@nyphp.org
Subject: [PHP] mysql_num_rows() error
> Anyone know why this is happening? I have mySQL on Win2000 Server with IIS
> and PHP:
>
> mysql_num_rows(): supplied argument is not a valid MySQL result resource
>
> Here is my code:
>
> <?
> $conn = mysql_connect('localhost', "xxx", "yyy") or
> die('Could not
connect
> to db');
> $result = mysql_query('select * from blah');
> echo "Number of rows: " . mysql_num_rows($result);
> if (mysql_num_rows($result) > 0) {
> while ($row = mysql_fetch_row($result)) {
> for ($i = 0; $i < sizeOf($row); $i++) {
> echo "$i: " . $row[$i] . "<BR>";
> }
> }
> }
> ?>
>
> It couldn't get any simpler. I just installed mySQL on my machine and am
> trying to see what I can do with it giving Win2K and IIS.
>
> AUGH! Thanx
> Phil
>
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