Re: [php] if $sql has returned something
| From: | John Taylor-Johnston | Date: | Wed, 25 Feb 2004 18:26:41 +0000 |
| Subject: | Re: [php] if $sql has returned something | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-178872@lists.php.net to get a copy of this message | ||
Richard,
Thanks. Should I still include the die ?
$myconnection = mysql_connect($server,$user,$pass);
mysql_select_db($db,$myconnection);
$eventid = $link_date;
$sql = 'SELECT * FROM '.$table.' where eventid like
\''.$eventid.'\';';
$glquery = mysql_query($sql) or die("Invalid query: " . mysql_error());
$num_rows = mysql_num_rows($glquery);
if ($num_rows > 0)
{
echo "<td width=100 height=100 align=left valign=top><a
href=results.php?eventid=$link_date> $day </a></td>";
}else{
echo "<td width=100 height=100 align=left valign=top> $day </td>";
}
Richard Davey wrote:
> mysql_query will return FALSE if the query is invalid.
> If the query is perfectly valid SQL, but just doesn't return
> anything, then you need to use mysql_num_rows() instead - if this is
> equal to nothing then nothing was returned.