Creating a site to display project related details. From the home page, a person can select to go to several project specific pages. Once a person is in a project specific page, from the top menu, I want the user to be able to view the same details for any project. The following line is what I have been using but it always take the person back to project specific home page rather then maintaining the current page and just displaying the new details

PHP Code:

echo '<a href="display_project_details.php?project_id='.$row['project_id'].'">'.$row['project'].'</a>'; 


What I some how need to do is

PHP Code:

echo '<a href="REFRESH CURRENT PAGE"?project_id='.$row['project_id'].'">'.$row['project'].'</a>'; 


I did find this but it does not work when I add the variable to the statement

PHP Code:

  echo '<a href="javascript:location.reload()?project_id='.$row['project_id'].'" target="_self">'.$row['project'].'</a>'; 


It will not accept the new data point.

Update on progress.

I did not find a nice easy command line like previously shown, what I have done was to create a table in the db which I then query for the page file name by using session variable that get updated as you move around the site. I essentually track the movement of user around the site.

Have a look at using JQuery (or similar) to call an AJAX request to update the data for you.

Something i wrote a while back, May help you:
http://www.hauntednipple.co.uk/?p=16

Have you actually created a table in the display? I think you can use the session variable that will get updated while browsing the site.