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());
	}
}

DISPLAY POST VIEWS WITHIN ADMIN POST COLUMNS 

wordpress

PHP