Open Graph Tags for WordPress

Open-Graph-Tags-WordPress.php

<!-- Twitter Cards   -->
   <meta name="twitter:card" content="summary_large_image" /> 
   <meta name="twitter:site" content="@site_twitter_username" />
    <meta name="twitter:creator" content="@author_twitter_username" /> 
    <meta name="twitter:title" content="<?php echo get_the_title(); ?>" />
    <meta name="twitter:description" content="<?php echo get_post_meta( get_the_ID(), 'desc', true);?>" />
    <meta name="twitter:image" content="<?php echo get_the_post_thumbnail_url(); ?>" />
    
         
    <!-- // Facebook  -->
    <meta property="og:url" content="<?php echo get_permalink(); ?>" />
   <meta property="og:type" content="article" />
   <meta property="og:title" content="<?php echo get_the_title(); ?>" />
   <meta property="og:description" content="<?php echo get_post_meta( get_the_ID(), 'desc', true);?>" />
   <meta property="og:image" content="<?php echo get_the_post_thumbnail_url(); ?>" />
        
    <!-- Rich Pins   -->
    <meta property="og:type" content="article" />
    <meta property="og:title" content="<?php echo get_the_title(); ?>" />
    <meta property="og:description" content="<?php echo get_post_meta( get_the_ID(), 'desc', true);?>" /> 
    <meta property="og:url" content="<?php echo get_permalink(); ?>" /> 
    <meta property="og:site_name" content="<?php echo get_bloginfo('name'); ?>" />
    <meta property="article:published_time" content="<?php echo get_the_date('c'); ?>" />
    <meta property="article:author" content="<?php get_the_author_meta('display_name');?>" />