twitter_post_tweet.php

<?php

require __DIR__ . '/../vendor/autoload.php';

use Curl\Curl;

const API_KEY = 'XXXXXXXXXXXXXXXXXXXXXXXXX';
const API_SECRET = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
const OAUTH_ACCESS_TOKEN = 'XXXXXXXX-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
const OAUTH_TOKEN_SECRET = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';

$status = 'I love php curl class. https://github.com/php-curl-class/php-curl-class';

$oauth_data = [
    'oauth_consumer_key' => API_KEY,
    'oauth_nonce' => md5(microtime() .  mt_rand()),
    'oauth_signature_method' => 'HMAC-SHA1',
    'oauth_timestamp' => time(),
    'oauth_token' => OAUTH_ACCESS_TOKEN,
    'oauth_version' => '1.0',
    'status' => $status,
];

$url = 'https://api.twitter.com/1.1/statuses/update.json';
$request = implode('&', [
    'POST',
    rawurlencode($url),
    rawurlencode(http_build_query($oauth_data, '', '&', PHP_QUERY_RFC3986)),
]);
$key = implode('&', [API_SECRET, OAUTH_TOKEN_SECRET]);
$oauth_data['oauth_signature'] = base64_encode(hash_hmac('sha1', $request, $key, true));
$data = http_build_query($oauth_data, '', '&');

$curl = new Curl();
$curl->post($url, $data);

echo 'Posted "' . $curl->response->text . '" at ' . $curl->response->created_at . '.' . "\n";