$vbulletin->userinfo['fieldxx']

[TTayfun]

Hi guys,
i tried something for this link but i could not. Look,

i created userfield as radiobuttons and options: yes and no i want change userfield with link.
i must write some code at misc_start hooks.

i want when

misc.php?do=changefield&message=yes

then field of user will be = yes

i wrote some codes but not worked:

PHP Code:

global $vbulletin;
                if(($_REQUEST['do']=='changefield'))
$message=strtolower(trim($_REQUEST['message']));
                        if($message=='yes')
{
$vbulletin->userinfo['field14'] === 'yes';
}

if($_SERVER['HTTP_REFERER']!='')
                            $vbulletin->url = $_SERVER['HTTP_REFERER'];
                        else
                            $vbulletin->url = $vbulletin->options['bburl'];
                        eval(print_standard_redirect('',false,false));