[Typo3-dev] Howto unset some FE user data in the BE

[Peter Russ]

Michael Scharkow wrote:

> Hi *,
> 
> for the survey extension, I need to clear *some* session data that I 
> stored as described in [1]. Specifically, I need to unset part of the 
> userdata array for *every* FE user (the variable which indicates that a 
> survey on page XYZ has been filled out). The best way would, of course, 
>   be to iterate through all relevant users' data array, like
> 
> for ($fe_users_session_data as $user){
>     unset $user['mydata'][$PID];
> }
> 
> The difficulty is how to get to the $fe_users_session_data array in a BE 
> module, and probably how to extract the relevant 'mydata' part (by 
> unserializing I presume).
> 
> Any hints are appreciated...
> 
> Greetings,
> Michael
> 
> 
> 
> [1] 
> http://typo3.org/documentation/document-library/doc_core_tsref/Storing_user_data_or/ 
> 
Session data is stored in table fe_session_data. Querying this might help.

Regs. Peter.