How to Display Post View Count

I am trying to display post view counts.

I’ve tried below function to display the post view count, but I’m getting same post view for all the post in loop. Not getting correct post view count.

Function:

       <?php
          // function to display number of posts.
           function getPostViews($postID){
           $count_key = 'post_views_count';
                $count = get_post_meta($postID, $count_key, true);
              if($count==''){
          delete_post_meta($postID, $count_key);
                     add_post_meta($postID, $count_key, '0');
                    return "0 View";
            }
            return $count.' Views';
      }             

          // function to count views.
       function setPostViews($postID) {
      $count_key = 'post_views_count';
          $count = get_post_meta($postID, $count_key, true);
     if($count==''){
                 $count = 0;
     delete_post_meta($postID, $count_key);
               add_post_meta($postID, $count_key, '0');
          }else{
     $count++;
                   update_post_meta($postID, $count_key, $count);
               }
             }


          // Add it to a column in WP-Admin
     add_filter('manage_posts_columns', 'posts_column_views');
       add_action('manage_posts_custom_column', 'posts_custom_column_views',5,2);
     function posts_column_views($defaults){
      $defaults['post_views'] = __('Views');
     return $defaults; 
        }
       function posts_custom_column_views($column_name, $id){
if($column_name === 'post_views'){
    echo getPostViews(get_the_ID());
      }
       }
     ?>

Loop Code:

   <ul>
      <?php $the_query = new WP_Query( 'showposts=5' ); ?>

        <?php while ($the_query -> have_posts()) : $the_query -> the_post(); ?>
      <li><a href="https://wordpress.stackexchange.com/questions/144340/<?php the_permalink() ?>"><?php the_title(); ?></a>

       <?php echo getPostViews(get_the_ID()); ?>  //post View COde

  <?php echo substr(strip_tags($post->post_content), 0, 250);?></li>

      <?php endwhile;?>
  </ul>

Need suggestions to display Correct Post View Count in while Loop

Add this to single.php, and make sure you paste in inside the loop.

<?php setPostViews(get_the_ID()); ?>

Lastly, to display the number of views a post has, just add this where you want it to be displayed:

<?php echo getPostViews(get_the_ID()); ?>

.

<?php

// function to display number of posts.

function getPostViews($postID){
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
        return "0 View";
    }
    return $count.' Views';
}

// function to count views.
function setPostViews($postID) {
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        $count = 0;
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
    }else{
        $count++;
        update_post_meta($postID, $count_key, $count);
    }
}

?>