[horde] Upgrade PHP 5.4.45 to 5.6.31

[Jan Schneider]

Zitat von Anton Köstlbacher <horde3 at dingsbums.org>:

> Hi Horders,
>
> I tried updating a Debian Wheezy PHP from 5.4.45-0+deb7u9 to  
> 5.6.31-1~dotdeb+7.1
>
> After upgrading PHP, other apps like Mediakwiki, Wordpress etc. are  
> working just fine.
>
> When logging into Horde I get:
>
> 2017-08-10T22:25:26+02:00 EMERG: HORDE  
> Horde_Prefs_Scope::serialize() must return a string or NULL [pid  
> 21634 on line 62 of "/usr/share/php/Horde/Prefs/Cache/HordeCache.php"]
>
> I disabled all caching, but it doesn't help. There were changes in  
> PHP regarding serialization and also json_decode. Could there be  
> serialized values in hordes prefs table which need to be  
> updated/corrected before upgrading PHP?
>
> Sorry if this was asked before, but I couldn't find anything. Thanks  
> for your help!
>
> Kind Regards,
> Anton

It's rather json_encode that seems to failing. Try raising the log  
level to get any warnings and errors from that call.

-- 
Jan Schneider
The Horde Project
https://www.horde.org/