I am doing a mysql_num_rows after a SELECT statement and am getting
the following warning message:
Warning: Supplied argument is not a valid MySQL result resource in {pathname to
program} on line 40
Line 40 - $result = mysql_num_rows($res);
The SELECT statement:
$res = mysql_query("SELECT * FROM company WHERE $category='yes'",$db);
($category is passed to this program from an input form.)
Is there a way to stop this warning to the user when $category = 'no' for all records?
-tom
