[mythtv-users] Can't change channel data with Mythweb anymore

[Mike Perkins]

On 25/02/12 16:14, Tim Flagg wrote:
> On 29/05/2008, Bob Sully<rcs[at]malibyte.net>  wrote:
>
>> ....I find that the channel editor in MythWeb no
>> longer saves ANY changes I make....
>> It goes through th motions after I hit "Save", but no data gets changed in
>> the database. It doesn't seem to matter what I'm doing (delete a channel,
>> change data within a chammel record, etc.).
>
> I didn't see a post on how to fix this and it just happened recently.
>
> Check the error log for your web server.
> For example, on Ubuntu, check /var/log/apache2/error.log and you
> may see the reason for the problem. For example:
>
>          [error] [client 127.0.0.1] PHP Warning:  Unknown: Input variables
> exceeded 1000. To increase the limit change max_input_vars in php.ini. in
> Unknown on line 0, referer: http://localhost/mythweb/settings/tv/channels
>
> If you see the above error, then add the following line to
> /etc/php5/apachd2/php.ini:
>
>           max_input_vars = 100000
>
> (I don't know exactly how big the number has to be but the above worked).
>
> Then restart apache:
>
>        service apache2 restart
>
> I'm guessing the reason this started happening is related to a newer
> version of php that introduces a new variable, "max_input_vars" that
> is used to prevent Denial of Service attacks.   See
> http://www.pcworld.com/businesscenter/article/248000/hash_collision_dos_vulnerability_fixed_in_php_539.html
> for more details on that.
>
There may also be another limit buried in the suhosin configuration files. That 
one caught me out a while back.

-- 

Mike Perkins