http://www.php.net/manual/en/function.mysql-affected-rows.php
On Fri, 22 Mar 2002, Ashley M. Kirchner wrote: > > After a bit of research: > > ---------- > Rick Emery wrote: > > > $result = mysql_query(.....)' > > mysql_num_rows($result) > > Hrm, this is resulting in: > > <b>Warning</b>: Supplied argument is not a valid MySQL result resource in > <b>./index.php</b> on line <b>16</b><br> > Rows > ---------- > > > Rightfully so. mysql_query() will only return true/false for UPDATEs > indicating failure/success. And, it's perfectly normal for it to be TRUE even > if absolutely nothing was changed in the DB - the query was successful. And > mysql_num_rows($result) fails because $result=1 (assuming the query was valid). > > So, I need a different way to approach this so I can get some type of > indication that something did change in the DB, or whether no records were > found in the first place. > > I'd hate to have to do this in two steps, first query the DB with a SELECT > statement, and if something was found, then do an UPDATE. > > Anyone have any other ideas? > > -- > W | I haven't lost my mind; it's backed up on tape somewhere. > +-------------------------------------------------------------------- > Ashley M. Kirchner <mailto:[EMAIL PROTECTED]> . 303.442.6410 x130 > IT Director / SysAdmin / WebSmith . 800.441.3873 x130 > Photo Craft Laboratories, Inc. . 3550 Arapahoe Ave. #6 > http://www.pcraft.com ..... . . . Boulder, CO 80303, U.S.A. > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
