Solved

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in

Posted on 2008-06-20
4
1,286 Views
Last Modified: 2013-12-12
I receive the following error when trying to run my script,

"Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in html/geturl.php on line 20"


It seems to be this line "while($row = mysql_fetch_array( $result )) {"
<?php
 

$URL = $_GET["URL"];
 

$con = mysql_connect("****","****","****");
 

if (!$con)

  {

  die('Could not connect: ' . mysql_error());

  }
 

mysql_select_db("urlshortener1986", $con);
 
 

$result = mysql_query("SELECT * FROM `urls` WHERE `ShortURL` = ".$URL." LIMIT 1");
 
 
 
 

while($row = mysql_fetch_array( $result )) {
 

echo '<meta http-equiv="refresh" content="5;url='.$row['URL'].'">';
 
 

} 
 
 
 
 

mysql_close($con);
 
 
 
 

?>

Open in new window

0
Comment
Question by:JPERKS1985
  • 2
4 Comments
 
LVL 2

Accepted Solution

by:
kszurek earned 500 total points
ID: 21830806

$result = mysql_query("SELECT * FROM `urls` WHERE `ShortURL` = \"".$URL."\" LIMIT 1");

Open in new window

0
 
LVL 19

Expert Comment

by:Barthax
ID: 21830823
In all likelihood your mysql_query has returned an error & not a MySQL resource.  Check what the content of the $result is prior to attempting to use it - the $result will contain false on an error & you can retrieve the error details through mysql_errno() and mysql_error().
0
 
LVL 19

Expert Comment

by:Barthax
ID: 21830827
Or spot the obvious, like kszurek. ;)
0
 
LVL 29

Expert Comment

by:fibo
ID: 21830830
Line 16: check if you have results. if there is no anwers, then mysql_fetch_arry cannt work and issues the diagnostice you have got

if (!$result) {
    die('Invalid query: ' . mysql_error()."<br>No answer when looking at [$URL]" );
}
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
MySQL Init Waits 25 76
MySQL - Restore Database SQL File 5 41
mysqli 3 18
Split long text string into shorter chunks 7 19
Foreword (July, 2015) Since I first wrote this article, years ago, a great many more people have begun using the internet.  They are coming online from every part of the globe, learning, reading, shopping and spending money at an ever-increasing ra…
This article discusses how to create an extensible mechanism for linked drop downs.
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

948 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now