mysql_num_rows

From: Date: Sat, 13 Apr 2002 09:00:33 +0000
Subject: mysql_num_rows
Groups: php.db 
Request: Send a blank email to php-db+get-18473@lists.php.net to get a copy of this message
Hello All, I am struggling to understand why my query throws an error the code as below $link = mysql_connect ( "db.localhost.org", $user , $pass ); if ( ! $link ) die ( "Couldn't Connect to Mysql Server" ); print "Sucessfully connect to server <p>"; $query = "select * from users " ."where screen_name='$screen_name' " ." and passwd=password('$passwd')"; $result = mysql_query($query, $link); if (mysql_num_rows($result) >0 ) When executed you get a little message back like this one Warning: Supplied argument is not a valid MySQL result resource in /usr/local/share/doc/apache/trial/authmain.php on line 20 What does this generally mean as I have noted that others use this syntax so what is my issue ? Any help or pointers to references would be most appreciated. Thanks Luke K

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