<?php 
$next_post = get_next_post();
$previous_post = get_previous_post();
if( !empty($next_post) || !empty($previous_post)):?>
	<div class="ps-navigation">
		<ul>
			<?php			 
				$url_next = is_object( $next_post ) ? get_permalink( $next_post->ID ) : ''; 
				$title    = is_object( $next_post ) ? get_the_title( $next_post->ID ) : ''; 
				if($next_post):?>	
				  	<li class="prev">
				  		<div class="inner-pre">
						    <a href="<?php echo esc_url( $url_next ) ?>">
						    	<span class="next_link"><?php echo esc_html__('Previous', 'echooling'); ?></span>
						    	<span class="link_text"> <?php echo esc_attr( $title ); ?></span>
							</a>
						</div>
				  	</li>
				<?php endif;     
	  			$url_previous = is_object( $previous_post ) ? get_permalink( $previous_post->ID ) : '';
	  			$title = is_object( $previous_post ) ? get_the_title( $previous_post->ID ) : '';
			  	if($previous_post):?>
				  	<li class="next">
				  		<div class="inner-next">
						    <a href="<?php echo esc_url( $url_previous ) ?>">
						    	<span class="next_link"><?php echo esc_html__('Next', 'echooling'); ?></span>
						    	<span class="link_text"><?php echo esc_attr( $title ); ?> </span>
							</a>
						</div>
				  	</li>
			  <?php endif; ?>
		</ul>
		<div class="clearfix"></div>
	</div>
<?php endif;