[Wordpress] Add Twitter & Facebook share buttons to posts

wp-post-twitter-fb-share.php

<?php
add_action('the_content', 'my_share_this');
/**
 * Add Twitter & Facebook share buttons to posts
 *
 * Sources:
 * - http://wordpress.stackexchange.com/questions/125838/how-to-create-really-simple-wordpress-custom-buttons-for-print-facebook-share-a
 * - http://www.catswhocode.com/blog/wordpress-snippets-to-interact-with-social-networks
 *
 */
function my_share_this($content){
	if(is_single()) {
		$content .= '<div class="social-profiles clearfix">
			<span>Share:</span>
			<ul>
				<li class="facebook">
					<a href="https://www.facebook.com/sharer/sharer.php?u=' . get_permalink() . '" target="_blank" class="facebookIcon" title="Share on Facebook">
					</a>
				</li>
				<li class="twitter">
					<a href="https://twitter.com/share?text=' . get_the_title() . '+&ndash;+" target="_blank" class="twitterIcon" title="Tweet on Twitter">
					</a>
				</li>
			</ul>
		</div>';
	}
	return $content;
}