<?php 
 
function bb_account_save_preferences() 
{ 
    $cookie_username=isset(Configs::$_['user_data']['user_id'])?Configs::$_['user_data']['user_id']:''; 
 
    if(!isset($cookie_username[1])) 
    { 
        return 'NG'; 
    } 
 
    $timezone=strip_tags(addslashes(getPost('timezone',''))); 
    
    $db=new Database();  
 
    $queryStr="update bb_user_data set "; 
    $queryStr.=" timezone='".$timezone."' "; 
    $queryStr.=" where user_id='".Configs::$_['user_data']['user_id']."'; "; 
 
    $db->nonquery($queryStr); 
 
    return 'OK'; 
}
 
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