How to display time spent by visitor on website?

Question

Have no idea how to make it :( I think javascript should be used, any suggestions?

Answer 1

Something like this?

var startDate = new Date();
window.onbeforeunload = function() {
    var millSecsOnPage = new Date() - startDate;
    // ajax save this value
};

Answer 2

You need to post from the client side two times:

1. First window.onload - when the user started viewing the page, tough you might be able to do it internally on your PHP/ASP server code. This might get broken by cache.
2. When the user leaves - this is a must window.onclose.

Just post back an empty post - you only need to know the IP and the lookup for the previous time recorded.

... or... use Google Analytics. 2 minutes of work.

Edit: I see d's code. This is the first answer I gave you - but be warned, that without JavaScript - this cannot be done.

Edit2: Instead of using window.load, the post/get should be done in the header or in the . That php "js" can also be an empty file - you just need it to record the event.