监控用户在页面上的天数

Question

I want to track that the user has played the game on my website for 15 minutes per day and for continuous 10 days if he misses one day then his needs to again start from day 1 using JavaScript and PHP.

I am getting stuck in the idea that how we can track the 15 minutes a day and 10 days for a specific user.

Answer 1

As @arkascha mentioned, tracking user involves using sessions and saving data to permanent storage (you can save into file for first time, but learn DB management - PHP is closely tied with this one)

But before that you need to ask YOURSELF with few questions

1. Why do need to check data about users on your site? Remember that most of time users don't spend on web page, maybe it's better to check their requests to your site?
2. What type of network environment you're using. Is your website is opened for entire world (eg Internet) or you're located in small network with network access rules?

3. How you should identify your users? By IP or some kind of name? Answering 3rd question can be done via requesting phpinfo() function and checking following variables $_SERVER['USERNAME'], $_SERVER['REMOTE_USER'], $_SERVER['REMOTE_HOST'], $_SERVER['REMOTE_ADDR']

4. Learn sessions (start from manual http://php.net/manual/en/function.session-start.php )

And remember - you should ask questions about particular problems (for example, "Session variables are not storing on PHP 7.x, Ubuntu XX, Apache 2.4.x"), NOT general ones (please write the code for me)