facebook invite not getting deleted - php

Question

I'm using facebook function to delete an invite from notifications and application page tab after the invite is accepted but it is giving me a error.
function build_full_request_id($request_id, $user_id) {
echo $request_id . '_' . $user_id;
}
foreach ($request_ids as $request_id)
{
("reqeust_id=".$request_id."<br>");
$full_request_id = build_full_request_id($request_id, $user_id);
("full_request_id=".$full_request_id."<br>");
try {
$delete_success = $facebook->api("/$full_request_id",'DELETE');
if ($delete_success) {
echo "Successfully deleted " . $full_request_id;}
else {
echo "Delete failed".$full_request_id;}
}
catch (FacebookApiException $e) {
"error";}
}
This is the error,i get Call to a member function api() on a non-object in

Answer 1

wow, you have so many errors in your "code" i wonder that it only fails with the non-object error. try this one:
$facebook = new Facebook(array(
'appId' => '1231231231231',
'secret' => '12ba5212bae2617267',
));
foreach ($request_ids as $request_id) {
$full_request_id = $request_id."_".$user_id;
try {
$delete_success = $facebook->api('/'.$full_request_id, 'DELETE');
if ($delete_success) {
echo "Successfully deleted ".$full_request_id;
}else{
echo "Delete failed ".$full_request_id;
}
} catch(FacebookApiException $e) {
echo $e->getMessage();
}
}

Answer 2

The error means that your variable $facebook is not an object. Find the place in your code where $facebook is created and make sure you are generating it correctly. It should look something like this:
$facebook = new Facebook(array(
'appId' => '1231231231231',
'secret' => '12ba5212bae2617267',
));
(Obviously, it should have your appId and secret rather than the junk ones I put in there.)