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<?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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