How to extract comments from a Facebook account to my Webapp? - php

Question

I am trying to extract all the comments from a Facebook account to my Webapp using Graph API by coverting the result into an array and then printing the array,but the result that I am getting is a blank array followed by the respective post.I don't know whats wrong.
if (isset($accessToken))
{
echo 'Posts:';
echo '<br>';
// getting all posts published by user
try {
$posts_request = $fb->get('/me/feed');
} catch(Facebook\Exceptions\FacebookResponseException $e) {
// When Graph returns an error
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
// When validation fails or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
}
$total_posts = array();
$posts_response = $posts_request->getGraphEdge();
$response_array = $posts_response->asArray();
if($fb->next($posts_response)) {
$total_posts = array_merge($total_posts, $response_array);
while ($posts_response = $fb->next($posts_response)) {
$response_array = $posts_response->asArray();
$total_posts = array_merge($total_posts, $response_array);
}
foreach ($total_posts as $key) {
if(isset($key['message'])){
echo $key['message'];
echo '<br>','<br>';
}
}
//print_r($total_posts);
} else {
$posts_response = $posts_request->getGraphEdge()->asArray();
foreach ($posts_response as $key) {
if(isset($key['message'])){
echo $key['message'];
echo '<br>','<br>';
$o_id= $key['id'];
echo $o_id;
try {
// Returns a `Facebook\FacebookResponse` object
$response = $fb->get('/113932879436074_129461837883178/comments',$accessToken);
}
catch(Facebook\Exceptions\FacebookResponseException $e)
{
echo 'Graph returned an error: ' . $e->getMessage();
exit;
}
catch(Facebook\Exceptions\FacebookSDKException $e)
{
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
$graphNode = $response->getGraphEdge();
$comments=$graphNode->asArray();
print_r($comments);
}
Output:
113932879436074_131399157689446Array ( ) #TrueStory 😁
113932879436074_131393101023385Array ( ) Good afternoon Pihu Jaiswal
113932879436074_129461837883178Array ( ) Super bored

Answer 1

if($fb->next($posts_response)) {
$total_posts = array_merge($total_posts, $response_array);
while ($posts_response = $fb->next($posts_response)) {
$response_array = $posts_response->asArray();
$total_posts = array_merge($total_posts, $response_array);
}
foreach ($total_posts as $key) {
if(isset($key['message'])){
echo $key['message'];
echo '<br>','<br>';
}
}
//print_r($total_posts);
} else {
$posts_response = $posts_request->getGraphEdge()->asArray();
foreach ($posts_response as $key) {
if(isset($key['message'])){
echo $key['message'];
echo '<br>','<br>';
$o_id= $key['id'];
echo $o_id;
try {
// Returns a `Facebook\FacebookResponse` object
$response = $fb->get('me?fields=id,name,posts{comments{message}}');
}
catch(Facebook\Exceptions\FacebookResponseException $e)
{
echo 'Graph returned an error: ' . $e->getMessage();
exit;
}
catch(Facebook\Exceptions\FacebookSDKException $e)
{
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
$graphNode = $response->getGraphNode();
$comments=$graphNode->asArray();
print_r($comments);
}