Warning: mysql_num_rows() supplied argument is not a valid MySQL result resource
Posted on
16th Feb 2014 07:03 pm by
admin
This may be simple I just may need another pair of eyes..
When i get records back the below code works just fine, when I get 0 rows back it shows the warning below. As you can see I tried to code for it and you can see that the code works as it echo's my message but I want the warning to go away
Did you know?Explore Trending and Topic pages for more stories like this.
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in show_coupon_list.php on line 224
No Coupons for this Catogory or Business. Please let us know about the Category that displayed no results so we can contact businesses for you!
Code: $cat_coupons = mysql_query("SELECT a.business_name, a.seq_id, a.state, a.city
FROM users a where a.seq_id = '$cat_coupons_seq_id'");
Code: $cat_num=mysql_num_rows($cat_coupons);
if ($cat_num > 0)
{
while ($row = mysql_fetch_array($cat_coupons))
{
$business_name = $row["business_name"];
$business_id = $row["seq_id"];
$state = $row["state"];
$city = $row["city"];
echo"<tr>
<td align = 'left'> <a href=show_coupon.php?business=".urlencode($business_name).">$business_name $city,$state </a></td>
</tr>";
}
}
else
echo"<tr>
<td>No Coupons for this Catogory or Business. Please let us know about the Category that
displayed no results so we can contact businesses for you!
</td>
</tr>";
No comments posted yet
Your Answer:
Login to answer
348
5
Other forums
Code doesn't print what i wanted it too. Please help!
Hi there,
I wrote this code to mae it so that in the form before it that the user said their
Multiple PHP errors when clicking a link..and..removing a ghost..
Hi - I have 2 problems with a new website - homeswapvacations.com, which I need help solving.
does anyone know a php script to send mail using gmails/googles free smtp server
cause i heard u can do that but i dont know how
Images in email problem
I found this script for sending emails, it works but if the email has <img src="image.jp
Deleting pointers froms vector?
Hi. I have a vector filled with pointers and I want to delete the pointers. I could do a loop and do
check how many commas the variable containing the query has between [i]select[/i
Hi...
iv made an sql table that contains id number - name of sql query and an sql query.
T
how do i display data on a page from mysql
1 - do i use this code at the top of each of my page i wish to only alow access if there as been a s
Nested (echoed) php running wrong script
Got a problem with a php website I'm creating.
In a nutshell, the first page is entirely html
how can i expire the submitted page using session.
hi,
i'm new to php world.
i'm using "post" method.
when i submit it,data goes to
Performance impact of cookies
Hi, I was just wondering what impact there would be in terms of performance if you where to set then