asked on

Need help troubleshooting javascript for keeping PHP session alive using ajax

I have the following javascript that doesn't appear to be doing anything. It;s supposed to make an ajax request and display an alert messagee very 5 seconds, .. but it doesn't appear to be working at all:

<script type="text/javascript">
var refreshSn = function () {	
	var time = 5000; // 5 secs
    settimeout(
        function ()
        {
        $.ajax({
           url: '../user/refresh_session.php',
           cache: false,
           complete: function () {refreshSn();}
        });
		alert('Session Re-started!');
    },
    time
);
};
</script>

Open in new window

The answer is probably simple, .. but I'm drawing a blank. Can anyone here maybe spot what might be wrong with the script? It's not even throwing any errors. I just never see the expected alert message.

Thanks,
- Yvan

Gary

setInterval
setTimeOut is a one off command.

Dave Baldwin

Are you loading jQuery before that? You are using jQuery syntax.

egoselfaxis

ASKER

Gary .. I'm not sure I understand your comment.
Are you saying that it's impossible for this script to work?

And yes Dave .. I am loading jquery before that.

- Yvan

Gary

ahh ignore me I missed you were calling the function again.

Gary

URL should be a proper url, this will not work as their is no relative path as far as jquery is concerned.

url: '../user/refresh_session.php',

It should be the full url (domain) or the path in relation to the root.

egoselfaxis

ASKER

No, you're mistaken. All of my other ajax functions within the same page are using relative paths and are all functioning just fine.

- Yvan

ASKER CERTIFIED SOLUTION

Gary

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Chris Stanyon

@egoselfaxis - nowhere in your code are you actually calling your function. You define it, but never call it!! Call it when the document is ready:

$(document).ready(function() {
    refreshSn();
});

Open in new window

Also, javascript is case sensitive - settimeout() is wrong. It should be setTimeout()

egoselfaxis

ASKER

Thank you! It works now!