MouseOver时启动PHP-Session

$("#profile_bar").mouseover(function(){

    <?php $_SESSION['sessionasdf'] = 'asdf'; ?>

});

Hello! I have been busy with this for an hour, but I'm deadbrain now. Can someone help me out or give me a hint? Is the function I wrote above, even possible?

Thanks in advance!

You need an Ajax Request to do this. You can't simply start a session in a script that's already been loaded.

$("#profile_bar").mouseover(function() {
    $.ajax({
        url: "sessionStartPage.php",
        cache: false,
        success: function(data) {
            alert("session has begun. Refreshing page now");
            location.reload(); //reload the page to load session variables
        }
    });
});​

As I said you have to use a technique called AJAX.. So its time to start learning:) http://www.smashingmagazine.com/2008/10/16/50-excellent-ajax-tutorials/

PHP run on server, JQuery(the javascript) run on browser.That's different. And you can start the session at every page on server, rather than by the event on browser.