Social sharing feature in few lines of code

social-sharing-bar.php

<?php 
/**
 * Social share bar
 * @param  int $post_id  post id
 * @param  string $title  post title
 * @param  string $twitter_via  twitter handle
 */
function custom_social_share(  $post_id, $title, $twitter_via ){
	if( !empty( $post_id ) && !empty( $title ) && !empty( $twitter_via )):
	$post_url = get_permalink( $post_id );
	?>
	<ul class="social-share-icons">
		<li class="share-icon"><a class="icon-clickable" href="https://www.linkedin.com/shareArticle?mini=true&url=<?php echo esc_attr( $post_url ); ?>&title=<?php echo $title; ?>&source=LinkedIn"><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/icon-linkedin.svg" height="35" width="35" alt="Linkedin icon" /></a></li> <!--  .share-icon -->
		<li class="share-icon"><a class="icon-clickable" href="https://www.facebook.com/sharer/sharer.php?u=<?php echo esc_attr( $post_url ); ?>" target="_blank"><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/icon-facebook.svg" height="35" width="35" alt="facebook logo" /></a></li> <!--  .share-icon -->
		<li class="share-icon"><a class="icon-clickable" href="http://twitter.com/share?text=<?php echo esc_attr( $title ); ?>&url=<?php echo esc_attr( $post_url ); ?>&via=<?php echo esc_attr( $twitter_via ); ?>"  target="_blank" ><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/icon-twitter.svg" height="35" width="35" alt="twitter logo" /></a></li> <!--  .share-icon -->
		<li class="share-icon"><a class="icon-clickable" href="mailto:[email protected]?body=<?php echo esc_attr( $post_url ); ?>&Subject==<?php echo esc_attr( $title ); ?>" ><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/icon-envelope.svg" height="35" width="35" alt="Email icon" /></span></li> <!--  .share-icon -->
		<li class="share-icon">
			<span class="icon-clickable js-share-label copy_link" ><img src="<?php echo get_stylesheet_directory_uri(); ?>/images/icon-link.svg" height="35" width="35" alt="Link icon" /></span>
			<input type="text" id="copy_post_href" value="<?php echo esc_attr( $post_url ); ?>" style="width:30px;opacity:0;"></li> <!--  .share-icon -->
		
	</ul> <!--  .social-share-icons -->
	<script type='text/javascript'>
	jQuery('.social-share-icons .copy_link').click( function(){
		var copyText = document.getElementById("copy_post_href");
		if( undefined !== copyText ){
			copyText.select();
		document.execCommand("Copy");
		}
	    return false;
	});
	</script>
	<?php
	endif;
}