Add Open Graph Protocol tags to Genesis Child theme

gistfile1.txt

//*Enqueue Font Awesome for icons
add_action( 'wp_enqueue_scripts', 'child_enqueue_scripts_styles' );
function child_enqueue_scripts_styles() {
  wp_enqueue_style( 'font-awesome', '//maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css', array(), CHILD_THEME_VERSION );
}	



//*Add Open Graph Stuff

add_action( 'genesis_meta', 'child_add_ogstuff_single' );
function child_add_ogstuff_single(){
	if (is_singular('post')){

$imgurl =genesis_get_image( array(
    'format' => 'url',
    'size' => 'full',
     ) );
$title=get_the_title();
$url=get_permalink();
$description=get_the_excerpt();

	echo '	<meta property="og:image" content="'.$imgurl.'" />
			<meta property="og:url" content="'.$url.'" />
			<meta property="og:title" content="'.$title.'" />
			<meta property="og:description" content="'.$description.'" />';
}}

//*Social Icons Shortcode for use in loop

add_shortcode('socialshares','sc_socialshares');

function sc_socialshares(){
$url=get_permalink();
$title=get_the_title();

	
	$returnstring= '
	<ul class="social-icons">
		<li><a class="socials facebook" href="https://www.facebook.com/sharer/sharer.php?u='.$url.'" target="_blank"><i class="fa fa-facebook"></i></a></li>
		<li class="social twitter"><a class="socials" href="http://twitter.com/intent/tweet?status='.$title.'+'.$url.'" target="_blank"><i class="fa fa-twitter"></i></a></li>
		<li class="social linkedin"><a class="socials" href="http://www.linkedin.com/shareArticle?mini=true&url='.$url.'&title='.$title.'&source=[SOURCE/DOMAIN]" target="_blank"><i class="fa fa-linkedin"></i></a></li>
	</ul>';
	
	return $returnstring;
}

//*CSS
/*
Social Icons 
-----------------------------------------------------------------------------------------------------*/
ul.social-icons {
	text-align: center;
	margin:10px 10px 20px;
}

ul.social-icons li {
	list-style-type: none;
	display: inline-block;
}

ul.social-icons li a {
	display: block;
	width:40px;
	height: 40px;
	line-height: 40px;
	color: #fff;
	background: #004677;
	margin:2px;
	text-align: center;
	border-radius: 3px;
}

ul.social-icons li a .fa {
	font-size: 20px;
	line-height: 40px;
}

ul.social-icons li a:hover {
	color: #9bcae8;
	
}
*/