Display the number of views using WordPress without using a plugin. Add code snippet to file functions.php your topic, then follow the step 1. and step 2. To display the number of views for each individual entry.

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";
    }
    return $count;
}
function setPostViews($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);
    }
}

Step 1.

Put this snippet below “setPostViews” in single.php inside the loop.

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

Step 2.
Put this snippet below in your template, where would you like to display the number of views.

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

The number of site views can be displayed in a separate column

To display the number of views in a separate column of your admin panel, you need to add the following code to the functions.php file.

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());
    }
}

The code was tested on a test site and everything works. Good luck developing WordPress sites.