On Wednesday 22 May 2002 09:27, Todd Williamsen wrote:
> I get an invalid argument when trying to create this output of pages to
> limit to 20 records per pages. I removed the line and it stopped the
> error, but the next and previous buttons will go on and on even if there is
> no more records so I am thinking it is my mysql_num_rows() function
>
> I have gotten this script from here:
>
> http://www.phpbuilder.com/columns/rod20000221.php3
>
> If you know of a better one or can help me out on this one, that is much
> appreciated
>
> Actual error is:
>
> not a valid mySQL result resource
General tips:
1) Liberal use of mysql_error() at strategic points in your code will help in
identifying where the problem lies.
2a) Printing the query (in your case $sql) that you're giving mysql allows you
to spot any obvious errors.
2b) If you don't spot any obvious errors then copy and paste the contents of
$sql into the mysql command-line and execute it there.
> <?php
>
> $numresults = mysql_query("SELECT * FROM booklist");
> $numrows = mysql_num_rows($numresults);
> < ---------------------------------------- FAILS HERE
> // next determine if offset has been passed to script, if not use 0
If that is the start of your code then the obvious mistake is that there is no
code to connect to mysql and initialise the connection etc.
--
Jason Wong -> Gremlins Associates -> www.gremlins.com.hk
Open Source Software Systems Integrators
* Web Design & Hosting * Internet & Intranet Applications Development *
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