WP Single Post Sharing

/***************************************************/
## Social share buttons.
/***************************************************/

function sachyya_social_sharing_buttons() {
	global $post;
	// Show this on post only.

	// Get current page URL
	$shortURL = get_permalink();

	// Get current page title
	$shortTitle = get_the_title();

	// Construct sharing URL without using any script
	$twitterURL = esc_url('http://twitter.com/share?text='.$shortTitle.'&url='.$shortURL);
	$facebookURL = esc_url('https://www.facebook.com/sharer/sharer.php?u='.$shortURL);
	$googleURL = esc_url('https://plus.google.com/share?url='.$shortURL);
	//$bufferURL = 'https://bufferapp.com/add?url='.$shortURL.'&text='.$shortTitle;
	$pinterestURL = esc_url('http://pinterest.com/pin/create/button/?url='.$shortTitle.'&media='.$post->guid.'&description='.$shortTitle);

	// Add sharing button at the end of page/page content
	$content = '<ul>';

	$content .= '<li><a href="'.$facebookURL.'" onclick="window.open(this.href, \'facebook-share\',\'width=580,height=296\');return false;"><span class="fa fa-facebook"></span></a></li>';

	$content .= '<li><a href="'. $twitterURL .'" onclick="window.open(this.href, \'twitter-share\', \'width=550,height=235\');return false;"><span class="fa fa-twitter"></span></a></li>';

	$content .= '<li><a href="#" onclick="window.open(\''.$pinterestURL.'\', \'pinterest-share\', \'width=490,height=530\');return false;"><span class="fa fa-pinterest-p"></span></a></li>';

	$content .= '<li><a href="'.$googleURL.'" onclick="window.open(this.href, \'google-plus-share\', \'width=490,height=530\');return false;"><span class="fa fa-google-plus"></span></a></li>';


	$content .= '</ul>';

	return $content;

}