Developer's Guide - MapGuide Open Source - OSGeo

Initialize the Web Extensions and connect to the Server using
// the Web Extensions session identifier stored in PHP
// session state.
MgInitializeWebTier ($configFilePath);
$userInfo = new MgUserInformation($mgSessionId);
$siteConnection = new MgSiteConnection();
$siteConnection->Open($userInfo);
$resourceService = $siteConnection->CreateService(
MgServiceType::ResourceService);
$featureService = $siteConnection->CreateService(
MgServiceType::FeatureService);
$queryOptions = new MgFeatureQueryOptions();
$map = new MgMap();
$map->Open($resourceService, $mapName);
// ----- Beginning of AJAX-specific code ----------
// Create the selection object by retrieving the current
// selection from the map.
$selection = new MgSelection($map);
$selection->Open($resourceService, $mapName);
// ----- End of AJAX-specific code ----------------
$layers = $selection->GetLayers();
if ($layers)
{
for ($i = 0; $i < $layers->GetCount(); $i++)
{
// Only check selected features in the Parcels layer.
$layer = $layers->GetItem($i);
if ($layer && $layer->GetName() == 'Parcels')
{
48 | Chapter 3 Working With Feature Data
// Create a filter containing the IDs of the selected
// features on this layer