在Yii / PHP中跟踪未登录的用户

Question

I am trying to track the actions of all non-logged in users on my site. The aim is to store this activity so that I can add it to their profile when they do create an account.

I am using the Behaviour below to assign new users a cookie and use that cookie as the basis of a "temp user" row in my Users table. This way a user can straight away start interacting with my API.

This seems to work fine. However, I am seeing loads more "temp user" rows being created in my DB than I have visitors to the site - about 2500 compared with around 500 visits yesterday (according to Google Analytics).

Is there anything wrong with the behaviour below, or am I doing something else wrong? Is there a better way?

  <?php
class ApplicationBehavior extends CBehavior
{
    private $_owner;

    public function events()
    {

        return array(
            'onBeginRequest' => 'setCookies'

        );
    }

    public function setCookies()
    {

        $owner = $this->getOwner();

        if ($owner->user->getIsGuest() && !isset(Yii::app()->request->cookies['dc_tempusername'])):
            $tempusername = genRandomString(20);
            $tempuser           = new User();
            $tempuser->username = $tempusername;
            $tempuser->email    = "noemailyet@tempuser.com";
            if (isset(Yii::app()->request->cookies['dc_tempusername'])) {
                $tempuser->name = Yii::app()->request->cookies['dc_tempusername']->value;
            } else {
                $tempuser->name = "CookieBasedTempuser";
            }
            $tempuser->points  = 1;
            $tempuser->firstip = $_SERVER['REMOTE_ADDR'];
            if ($tempuser->validate()) {
                Yii::app()->request->cookies['dc_tempusername'] = new CHttpCookie('dc_tempusername', $tempusername);
                $cookie                                         = new CHttpCookie('dc_tempusername', $tempusername);
                $cookie->expire                                 = time() + 60 * 60 * 24 * 180;
                Yii::app()->request->cookies['dc_tempusername'] = $cookie;
                $tempuser->save();
            } else {
                echo CHtml::errorSummary($tempuser);
            }
        endif;

    }
}
?>

Answer 1

Check if cookies are enabled first:
Check if cookies are enabled

If we're correct, every time you see that the user is a guest and does not have a cookie then you're creating a new temp user.

Why not check to see if a cookie is set first, if so then create the temp user? You would end up needing to set 2 cookies: initial temp cookie to check against, and then your 'dc_tempusername' cookie.

You could even go as far as using Browscap to check against known bots:
https://github.com/browscap/browscap-php
http://browscap.org/

You'll need to be able to define browscap in your php.ini