Question

I wonder whether someone may be able to help me please. Firstly, my apologies as to some this be a very basic question, I’m very new to working with XML so please bear with me.

I’m using this section of code to successfully load marker data from a MySQL database, placing them on a Google map.

            downloadUrl("loadallmyfinds.php", function(data) {  
            var xml = parseXml(data);
            var markers = xml.documentElement.getElementsByTagName("marker");
            for (var i = 0; i < markers.length; i++) { 
            // obtain the attribues of each marker 
            var lat = parseFloat(markers[i].getAttribute("findosgb36lat")); 
            var lng = parseFloat(markers[i].getAttribute("findosgb36lon")); 
            var point = new google.maps.LatLng(lat,lng); 
            var locationname = markers[i].getAttribute("locationname"); 
            var finddescription = markers[i].getAttribute("finddescription"); 
            var html = "<b>" + 'Description: ' + "</b>" + finddescription; 
            var findcategory = markers[i].getAttribute("findcategory"); 
            // create the marker 
            var marker = createMarker(point,html,locationname,finddescription,findcategory);
            } 

XML Output

<markers>
<marker userid="27" findid="1" locationname="Test Location 1" findosgb36lat="53.0000" findosgb36lon="-1.00000" osgridref="" dateoftrip="21/06/2012" findcategory="Artefact" finddescription="A rare Roman vase."/>
</markers>

The problem I have, is that in it’s current state all records are being retrieved irrespective of the user, but I need to make this user specific, to be more precise, if the userid element value matches the variable I have on my form which is $idnum.

I thought that I may be able to do this via the PHP query that is being loaded in the above i.e. loadallmyfinds using a GET clause, but sadly this doesn’t work.

I’ve done some research into this and I believe, from my limited knowledge, that I may be able to this via XML, but I’m really not sure how to implement it.

i just wondered whether someone could possibly look at this please and offer some guidance on how I may go about it so the records are filtered.

Many thanks and kind regards

Answer 1

You have the user id in the as $idnum. So, please change your ajax request from this:

downloadUrl("loadallmyfinds.php", function(data) {

to this:

downloadUrl("loadallmyfinds.php?id=<?php echo $idnum?>", function(data) {

and in the loadallmyfinds.php file:

OLD COMMENT

I guess you can store the userid in your session ($_SESSION['uid']=$userId;)

…and in your loadallmyfinds.php file, read this session variable and return only that user related content.