my-twitter-feed.php

<?php
/**
* Plugin Name: My Twitter Feed
* Plugin URI: https://mediaengagement.org/
* Description: This plugin uses PHP to connect to the Twitter API and populate a Twitter feed in browser.
* Version: 0.1
* Author: CME
* Author URI: https://mediaengagement.org/
**/

class TwitterFeed {
    public $twitterData; 
    function __construct() {
        // constructor runs when class is initialized
        $this->twitterData = array();

    }

    function register() {
        // where we will include any js, css, or php files we require
        include "twitterAPI.php";
    }


    // connects to Twitter API to retrieve ten most recent tweets from the provided user
    function getFeed() {
        $settings = array(
            'oauth_access_token' => "1732894075-MlvumVFZBVeBftcr52NmgZwnfho8rq0EkyrDJsn",
            'oauth_access_token_secret' => "eskrvmAkcfeOGAK12EvVoHnt341mYPUhJRAt1CBdnSAy8",
            'consumer_key' => "NRK4DnChojCvFCDrwVRM8OxVy",
            'consumer_secret' => "RuGc6eLEvMqC49uD5CABAXp2pCAdB63iXyujHf32WdLeymY7AT"
        );

        $url            = 'https://api.twitter.com/1.1/statuses/user_timeline.json';
        $getfield       = '?screen_name=EngagingNews';
        $request_method = 'GET';

        $twitter_instance = new Twitter_API_WordPress( $settings );

        $result = $twitter_instance
            ->set_get_field( $getfield )
            ->build_oauth( $url, $request_method )
            ->process_request();

        $data = json_decode($result);
        return $data;
        
        /*
        // authorization information
        $consumerKey       = "NRK4DnChojCvFCDrwVRM8OxVy";
        $consumerSecret    = "RuGc6eLEvMqC49uD5CABAXp2pCAdB63iXyujHf32WdLeymY7AT";
        $accessToken       = "1732894075-MlvumVFZBVeBftcr52NmgZwnfho8rq0EkyrDJsn";
        $accessTokenSecret = "eskrvmAkcfeOGAK12EvVoHnt341mYPUhJRAt1CBdnSAy8";
        
        // Twitter account username
        $twitterID = 'EngagingNews';
        
        // Number of tweets
        $tweetNum = 10;
         
        // Authenticate with twitter
        $twitterConnection = new TwitterOAuth(
            $consumerKey,
            $consumerSecret,
            $accessToken,
            $accessTokenSecret
        );

        // Get the user timeline feeds
        $feedData = $twitterConnection->get(
            'statuses/user_timeline',
            array(
                'screen_name'     => $twitterID,
                'count'           => $tweetNum,
                'exclude_replies' => false
            )
        );
        
        // updates public variable so that it stores the most recent tweets
        $this->twitterData = $feedData;
        
        return $feedData;
        */
    }

    function displayFeed($feed) {
        
        // test run to see if html will be displayed
        echo "<p>hello</p>";
        
        /*
        // Get the user timeline feeds
        // Get user info
        $profilePic = str_replace("normal", "400x400", $this->twitterData[0]->user->profile_image_url_https);
        $userName = $this->twitterData[0]->user->name;
        $userScreenName = $this->twitterData[0]->user->screen_name;
        $tweetsNum = $this->twitterData[0]->user->statuses_count;
        $followerNum = $this->twitterData[0]->user->followers_count;
        */

    }
    function activate() {
        // remove rewrite rules and then recreat rewrite rules
        flush_rewrite_rules();

        // when user clicks activate this code will run
        // stuff to initially set up plugin (ex making table in database to store plugins data)

        // create local variable that also references public variable storing the data for most recent tweets
        $twitterFeed = $this->twitterData;

        // add action so that most recent posts from twitter feed are retrieved when page is loaded
        add_action( 'wp_footer', 
        function() use ($twitterFeed) { 
            self::displayFeed( $twitterFeed); }, 5);

            
    }

    function deactivate() {

        //Code to delete the plugin and clean up after it would be added here.        
        $twitterFeed = $this->twitterData;

        // removes action hook that displays the recent tweets
        remove_action('wp_footer',
            function() use ($twitterFeed) {
                self::displayFeed( $twitterFeed);
            }, 5

        );

        // sets array that holds the data to null
        $this->twitterData = NULL;        
    }

    function uninstall(){
        //When the user clicks "uninstall" this code will run.
        $twitterFeed = $this->twitterData;

        //Code to delete the plugin and clean up after it would be added here.        
    
        // removes action hook that displays the recent tweets
        remove_action('wp_footer',
            function() use ($twitterFeed) {
                self::displayFeed( $twitterFeed);
            }, 5

        );

        // sets array that holds the data to null
        $this->twitterData = NULL;
    }
}

//Create a new instance of the plugin class.
$twitterFeed = new twitterFeed();

//Call the register function.
$twitterFeed->register();

//Register the activation hook.
register_activation_hook(__FILE__, array($twitterFeed, 'activate')); 
//Register the deactivation hook.
register_deactivation_hook(__FILE__, array($twitterFeed, 'deactivate')); 
//Register the uninstall hook.
register_uninstall_hook(__FILE__, array($twitterFeed, 'uninstall'));