Social Share Auto Fill

add_filter( 'gform_confirmation_12', 'social_share', 10, 4 );
function social_share( $confirmation, $form, $entry, $is_ajax ) {

		global $post;
		$page = get_permalink();
		$facebook_og = get_post_meta( $post->ID, '_yoast_wpseo_opengraph-description', true );
		$twitter = get_post_meta( $post->ID, '_yoast_wpseo_twitter-description', true );

		$confirmation .= '<div class="social-share">';
			$confirmation .= '<a target="_blank" href="https://www.facebook.com/sharer/sharer.php?u=' . $page . '"><i class="fa fa-facebook" aria-hidden="true"></i></a>';
			$confirmation .= '<a target="_blank" href="http://twitter.com/home?status=' . urlencode( $twitter ) . ' ' . $page . '"><i class="fa fa-twitter" aria-hidden="true"></i></a>';
			$confirmation .= '<a target="_blank" href="mailto:?subject=' . $post->post_title . '&body=' . $facebook_og . '"><i class="fa fa-envelope" aria-hidden="true"></i></a>';
		$confirmation .= '</div>';

	return $confirmation;
}