PHP Twitter post Twitter API

Posted on 2016-08-08
Last Modified: 2016-08-09
I'm attempting to use PHP to post a tweet to twitter using this class:

$status = "Just Send This!";

Open in new window

It does not work.  I get this error:  

Fatal error: Call to a member function post() on a non-object in /home/polysync/public_html/activist/twitter/test/TwitterPoster.php on line 75

Open in new window

The source for TwitterPoster.php looks OK. I do not see the problem.

I removed the token info from this post.


# Define constants
define('TWITTER_USERNAME', 'x');
define('CONSUMER_KEY', 'x');
define('CONSUMER_SECRET', 'x');
define('ACCESS_TOKEN', 'x');
define('ACCESS_TOKEN_SECRET', 'x');
define('TWEET_LENGTH', 140);

class TwitterPoster {

    private static $library = 'TwitterOAuth';
    private static $twitter = NULL;
    private static $DBH = NULL;

     * connect: Create an object of the Twitter PHP API either TwitterOAuth
     * or twitter-api-php
     * @access private
    private static function connect() {

        if(self::$library == 'TwitterOAuth') {


            # Create the connection
            self::$twitter = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, ACCESS_TOKEN, ACCESS_TOKEN_SECRET);

            # Migrate over to SSL/TLS
            self::$twitter->ssl_verifypeer = true;

        } else {


            self::$twitter = new TwitterAPIExchange(array(
                'oauth_access_token' => ACCESS_TOKEN,
                'oauth_access_token_secret' => ACCESS_TOKEN_SECRET,
                'consumer_key' => CONSUMER_KEY,
                'consumer_secret' => CONSUMER_SECRET



     * setDatabase: Pass in a PDO connection, if you've already got one
     * @param $database PDO
    public static function setDatabase($database) {
        self::$DBH = $database;

     * tweet: Post a new status to Twitter
     * @param $message string
     * @access public
    public static function tweet($message = '') {

        if(empty($message)) {

        # Load the Twitter object
        if(is_null(self::$twitter)) {

        if(self::$library == 'TwitterOAuth') {
            echo $message;
            $response = $twitter->post('statuses/update', array('status' => $message));
            echo $response;
        } else {
            $url = '';
            $requestMethod = 'POST';
            $postData = array('status' => $message);
            $response = $twitter->buildOauth($url, $requestMethod)->setPostfields($postData)->performRequest();

        return $response['id'];


      * randomTweet: Send a random tweet from your database connection
      * @access public
     public function randomTweet() {

	 $status="Just Send this!";




Open in new window

Question by:Jeff Darling
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2

Expert Comment

by:Mukesh Yadav
ID: 41748234
The post method is not defined in any class.
LVL 13

Author Comment

by:Jeff Darling
ID: 41748589
It is defined in TwitterOAuth.php.  It appears to be unavailable.

I'm closer, but now I am not sure why this object didn't get created.

   * POST wrapper for oAuthRequest.
  function post($url, $parameters = array()) {
    $response = $this->oAuthRequest($url, 'POST', $parameters);
    if ($this->format === 'json' && $this->decode_json) {
      return json_decode($response, true);
    return $response;

Open in new window


Accepted Solution

Mukesh Yadav earned 500 total points
ID: 41748603
Hi Jeff,

Just open TwitterOAuth.php and replace $twitter-> with self::$twitter->  in tweet function.

It's an typo in code i will report to the developer so that if anybody uses this code don't get stuck just because of a small type of developer.

LVL 13

Author Closing Comment

by:Jeff Darling
ID: 41748780
Answered to my satisfaction!  nice work.

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
PHP substring 3 54
Can't find an open element in HTML 5 55
How can I use javascript variable in mysql query 21 47
Ordering displaying data in a drop down 3 15
Nothing in an HTTP request can be trusted, including HTTP headers and form data.  A form token is a tool that can be used to guard against request forgeries (CSRF).  This article shows an improved approach to form tokens, making it more difficult to…
Introduction This article is intended for those who are new to PHP error handling (  It addresses one of the most common problems that plague beginning PHP develop…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …

710 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question