<?php
/*
Plugin Name:  WPBeginner Plugin Tutorial
Plugin URI:   https://www.wpbeginner.com 
Description:  A short little description of the plugin. It will be displayed on the Plugins page in WordPress admin area. 
Version:      1.0
Author:       WPBeginner 
Author URI:   https://www.wpbeginner.com
License:      GPL2
License URI:  https://www.gnu.org/licenses/gpl-2.0.html
Text Domain:  wpb-tutorial
Domain Path:  /languages
*/

function wpb_follow_us($content) {
 
    // Only do this when a single post is displayed
    if ( is_single() ) { 
     
    // Message you want to display after the post
    // Add URLs to your own Twitter and Facebook profiles
     
    $content .= '<p class="follow-us">If you liked this article, then please follow us on <a href="http://twitter.com/wpbeginner" title="WPBeginner on Twitter" target="_blank" rel="nofollow">Twitter</a> and <a href="https://www.facebook.com/wpbeginner" title="WPBeginner on Facebook" target="_blank" rel="nofollow">Facebook</a>.</p>';
     
    } 
    // Return the content
    return $content; 
     
    }
    // Hook our function to WordPress the_content filter
    add_filter('the_content', 'wpb_follow_us'); 
    
?>