function processFbEvent($event)
{
foreach ($event->changes as $change) {
switch ($change->field) {
case 'feed':
// process new comment logic
if ($change->value->item == 'comment' && $change->value->verb == 'add' && $change->value->parent_id == $change->value->post_id && $change->value->sender_id != PAGE_ID && (USER_COMMENT_AUTO_LIKE_ON || USER_COMENT_AUTO_REPLY_ON)) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN, 'fields' => 'from{id}'];
$postAuthorId = json_decode(fb_api_get("/" . $change->value->post_id, $params))->from->id;
logToFile('curl.log', $postAuthorId);
if ($postAuthorId != PAGE_ID) {
continue;
}
if (USER_COMMENT_AUTO_LIKE_ON) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN];
fb_api_post("/{$change->value->comment_id}/likes", $params);
}
if (USER_COMMENT_AUTO_REPLY_ON) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN, 'message' => USER_COMMENT_AUTO_REPLY_MSG];
fb_api_post("/{$change->value->comment_id}/comments", $params);
}
}
// process new post logic
if ($change->value->item == 'post' && $change->value->verb == 'add' && $change->value->sender_id != PAGE_ID && (USER_POST_AUTO_LIKE_ON || USER_POST_REPLY_ON)) {
if (USER_POST_AUTO_LIKE_ON) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN];
fb_api_post("/{$change->value->post_id}/likes", $params);
}
if (USER_POST_AUTO_REPLY_ON) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN, 'message' => USER_POST_AUTO_REPLY_MSG];
fb_api_post("/{$change->value->post_id}/comments", $params);
}
}
break;
case 'conversations':
if (CONVERSATION_REPLY_ON) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN, 'fields' => 'from,created_time', 'since' => time() - CONVERSATION_AUTO_REPLY_COOLDOWN];
$lastMsgs = json_decode(fb_api_get("/{$change->value->thread_id}/messages", $params));
logToFile('curl.log', print_r($lastMsgs, 1));
$needReply = true;
foreach ($lastMsgs as $msg) {
if ($msg['from']['id'] == PAGE_ID) {
$needReply = false;
break;
}
}
if ($needReply) {
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => PAGE_VERIFY_TOKEN, 'message' => CONVERSATION_AUTO_REPLY_MSG];
fb_api_post("/{$change->value->thread_id}/messages", $params);
}
}
break;
default:
//do nothing
}
}
}
<?php
require_once 'config.php';
require_once 'fb_api_controller.php';
//request longLived access token, to get longLive pageAccessToken
$params = ['grant_type' => 'fb_exchange_token', 'fb_exchange_token' => USER_ACCESS_TOKEN, 'client_id' => APP_ID, 'client_secret' => APP_SECRET];
var_dump(fb_api_get('/oauth/access_token', $params));
$longLivedAccessToken = explode('=', fb_api_get('/oauth/access_token', $params))[1];
//get page tokens and ids for each page
$params = ['client_id' => APP_ID, 'client_secret' => APP_SECRET, 'access_token' => $longLivedAccessToken];
$accounts = json_decode(fb_api_get('/me/accounts', $params));
foreach ($accounts->data as $page) {
echo $page->name . " : " . $page->access_token . "\n";
echo "Page ID: " . $page->id . "\n";
}
//get app access token
$params = ['grant_type' => 'client_credentials', 'client_id' => APP_ID, 'client_secret' => APP_SECRET];
$appAccessToken = explode('=', fb_api_get('/oauth/access_token', $params))[1];
echo "APP access token: " . $appAccessToken . "\n";
