Google Friend Connect fcauth cookie in php - cookies

Question

this may be easy for most of you .. but not me.
I am using some "sample" Google code - as it fits my purpose so why change what works - but for the life of me I cannot access/find/get etc the FCAuth cookie after a user is logged in.
Help please - thanks in advance.
Here is my code (the Site ID is in a set variable, and all the calls work todate. just need to find/get the FCAuth cookie.
var viewer, ownerFriends, activities;
google.friendconnect.container.setParentUrl('/api/' /* location of rpc_relay.html and canvas.html */);
google.friendconnect.container.loadOpenSocialApi({
site: SITE_ID,
onload: function() { initAllData(); }});
function initAllData() {
var params = {};
params[opensocial.DataRequest.PeopleRequestFields.PROFILE_DETAILS] =
[opensocial.Person.Field.ID,opensocial.Person.Field.NAME,opensocial.Person.Field.THUMBNAIL_URL,opensocial.Person.Field.PROFILE_URL];
var req = opensocial.newDataRequest();
req.add(req.newFetchPersonRequest('VIEWER', params), 'viewer');
req.add(req.newFetchPeopleRequest(
new opensocial.IdSpec({'userId' : 'OWNER', 'groupId' : 'FRIENDS'}), params),
'ownerFriends');
req.add(req.newFetchActivitiesRequest(new opensocial.IdSpec({'userId' : 'OWNER', 'groupId' : 'FRIENDS'})), 'activities');
var idspec = new opensocial.IdSpec({ 'userId' : 'VIEWER','groupId' : 'FRIENDS' });
req.add(req.newFetchPeopleRequest(idspec), 'viewer_friends');
req.send(onData);
req.send(setupData);
};
function setupData(data) {
ownerFriends = data.get('ownerFriends').getData().asArray();
var html = "";
for (var i = 0; i < ownerFriends.length && i < 8; i++) {
var person = ownerFriends[i];
html += "<a title='" + person.getField("displayName") + "' href='" + person.getField("profileUrl") + "'>";
html += "<img class='memberPhoto' src='" + person.getField("thumbnailUrl") + "' width='50px' alt='" + person.getField("displayName") + "'/>";
html += "</a> ";
};
document.getElementById('members').innerHTML = html;
viewer = data.get('viewer').getData();
if (viewer) {
document.getElementById('memberstate').innerHTML =
'<h2>' + viewer.getField("displayName") + ' welcome to the Yoga Council of Canada </h2>' ;
} else {
document.getElementById('memberstate').innerHTML =
'<h2>Join with one click</h2> After joining, you will automatically appear as a recent member.';
}
viewer = data.get('viewer').getData();
if (viewer) {
document.getElementById('profile').innerHTML =
'<img align="left" src="' + viewer.getField("thumbnailUrl") + '" style="margin-right: 20px;" >' +
'<strong>' + viewer.getField("displayName") + '</strong><br>' +
'Settings<br>' +
'Invite a friend<br>' +
'Sign out<br>';
} else {
google.friendconnect.renderSignInButton({ 'id': 'profile' });
}
};
function onData(data) {
if (!data.get("viewer_friends").hadError()) {
var site_friends = data.get("viewer_friends").getData();
var list = document.getElementById("friends-list");
list.innerHTML = "";
site_friends.each(function(friend) {
list.innerHTML += "<li>" + friend.getDisplayName() + "</li>";
});
}
};

Answer 1

OK, I am/was being totally thick, the cookie is automatically set as
$_COOKIE['fcauth<your appID>'];
So you can "just call it" i.e.
<?php if($_COOKIE['fcauth<your appID>']): do something endif; ?>