Ryan S wrote:
> This is really weird... i have tried the same exact code in phpmyadmin and it
> works like a charm, but when i run the script... no errors then i go to
> phpmyadmin and nothing has changed :(
>
> this is the code:
> ============================================================================
> $how_many_to_update=count($cardno_array);
>
> // update the cards status to sent
> for($i=0;$i<$how_many_to_update;$i++)
> {
> $update_sql="update greetings set is_sent=1 where
> cardno='".$cardno_array[$i]."' and rand_str='".$rand_str_array[$i]."' LIMIT
> 1";
>
> $result = mysql_query($sql_1);
You're running the wrong query.
You're building a query in "$update_sql" but running something else.
Change the mysql_query($sql_1) line and you should be right to go.
> Slightly OT, any better way to run the multiple updates needed above than
> instead of running the update query in a loop?
> I searched google and the best i could find was the IN() for mySql... but
> that does not take 2 parameters (eg: cardno and rand_str) it would work just
> on card_no like this in('14','34')
An IN() clause is the same as:
field='x' or field='y'
so you can use that:
update greetings set is_sent=1 where cardno='a' or cardno='b'
if you need the extra stuff (about the rand_str) you should be able to:
update greetings set is_sent=1 where (cardno='a' and rand_str='a') or
(cardno='b' and rand_str='b')
Try it with some test data first obviously.
Some of the comments here:
http://dev.mysql.com/doc/refman/5.0/en/update.html
Provide other suggestions.
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