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

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 = $row["city"];
echo"<tr>
<td align = 'left'>&nbsp;&nbsp;<a href=show_coupon.php?business=".urlencode($business_name).">$business_name &nbsp;&nbsp;&nbsp; $city,$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 Like 5 Dislike
Previous forums Next forums
Other forums

Save data in input fields when they press "BACK BUTTON"
Hi, this is html form: And let's say they get a error "Please enter ur title must be more then

how to insert value
I am having file bookissueadd.php..... in which i am having tag

<td height="21&q

php not working written for consumption of slots
1. Here is the function where i will be allowed to consume the slot booked by me.

2. Here i c

How to Detect it is public_html or httpdocs?
How to check whether it is cPanel or Plesk?

If it found public_html perform <?php incl

serializing objects - loses methods - the point being?
Hi

I know that serializing an object will lose the methods. But whats the point in that? What

Need understanding of this bit of code
Code: <?php
// WHERE clause filters
$arrSQLFilters = array();

//

CHECK A STRING FOR ' " ' (DOUBLE QUOTES)
I am checking for delimiter (.!?) and if there is a " after a sentence then it should neglect a

File upload issues
Hi Guys,

Can anyone see any issues with this code:
Code: [Select]$setImage= 'productimages

Curl & sessions PLS HELP
Hello,

I have a problem with curl and sessions and i will try to explain the best i could.

Echo multiple lines of html code
Hi guys,

I would like to know if there is a way to echo multiple lines of html codes.

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash