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

PHP search multiple input field box help
I am having a problem with my search script. At current it will simply search by a selected date whi

Saving data from a form into a file
Hey everybody,

Sorry, I am really new to PHP coding and such but a project kind of got thrust

Weird problem with SELECT command..Help!
Hi!

It seems I'm having a really weird problem with SQL SELECT command....I have table into a

Fetching META TAGS through
Hello everybody
I want to fetch meta tags of a domain.
It will be done from following code of

problem when runing a funciton
I am trying to connect to database using a funciton in a functions.php

<?php
funct

Get last modified date of web page
Hai All,

In php how can i get last modified date of a give web page . I have tried to g

Significance of BPM
Hi Experts,
I am a novice in BPM , I just want to know how BPM as permenant department is

Sufficient protection from bad input?
I am writing a simple script to let people upload 'pages' of their own content, be it simply a few b

Not loading image
When this function gets loaded it doesn't load the image just trying to figure out why.

Code:

Secure pages Sessions vs. Cookies & session_destroy() help
Im new here and new to PHP, I hope you can help me with some questions.

Im writing my web ap

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