Thanks to you both Richard and Bastian. I am a newb and am trying to
work alot out for myself. I decided to use the number rows method and
validate against that. But now that I know that I should be defining my
variables at the top, that will help alot.
jzf
Hutchins, Richard wrote:
Many ways to remove the epidermis from a feline, but...
You may want to do something equivalent (I think you're using mysqlite) to
the mysql_num_rows() function on your result set as a condition to running
your while loop . In pseudocode...
if(mysql_num_rows($result_set) < 1){
echo out something like <p>no results</p>".
}else{
your current while... loop
}
That way, if your query returns no results, you don't try to set the
variables but you communicate that nothing was found.
Best way? Maybe not. I've used it a few times and it's done the trick for
me. Your mileage may vary.
Rich
-----Original Message-----
From: J. Connolly [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 08, 2005 1:23 PM
To: PHP list
Subject: [PHP-DB] empty set query
I have a query which can result in an empty set/ no matching records.
The code I have which returns a code is:
$result = mysqli_query($link, $sql);
while ($query = mysqli_fetch_array($result)){
$title = $query['title'];
$director = $query['director'];
echo "<table><tr><td>$title</td><td> $director</td></tr></table>\n";
}
If the resulting query is a empty set, which variable or item to I
refence as null. I already tried
if (!query) and (!$title)
and neither of them work. I also tried if either of them are null. I
don't need someone to give me a long explanation just a small bump as to
what I should be referencing. In other words, what is it that I should
reference? Should I just write a code that returns number of rows and
use that?
Jzf
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