I have cross-checked the above mentioned points, still shows error.
I am using the following php wrapper for the twitter api v1.1 twitter-api-php .
please see the code:
<?php
$consumerkey = '****';
$consumersecret = '*****';
$accesstoken = '********-********';
$accesstokensecret = '********';
require_once('Classes/TwitterAPIExchange.php');
$settings = array(
'oauth_access_token' => $accesstoken,
'oauth_access_token_secret' => $accesstokensecret,
'consumer_key' => $consumerkey,
'consumer_secret' => $consumersecret
);
$url = 'https://api.twitter.com/1.1/account_activity/all/msgdev/webhooks.json?url=https://cii.emanantinc.com/r139c/twitterwebhook.php';
$requestMethod = 'POST';
$twitter = new TwitterAPIExchange($settings);
echo $twitter->buildOauth($url, $requestMethod)
->performRequest();