Плагин кнопка-рейтинг «Лайк» для WordPress

[likebtn_likes]

[likebtn_dislikes]

[likebtn_likes identifier="my_item_1"]

[likebtn_dislikes identifier="my_item_1"]

[likebtn_category_likes]

[likebtn_category_likes category_id="7"]

<?php
    $args  = array(
        'orderby' => 'meta_value',
        'order' => 'DESC',
        'meta_query' => array(
            'relation' => 'OR',
             array(
                'key' => 'Likes',
                'compare' => 'NOT EXISTS',
                'type' => 'numeric'
             ),
             array(
                'key' => 'Likes',
                'compare' => 'EXISTS',
                'type' => 'numeric'
             )
         )
    );
    $args = array_merge( $args , $wp_query->query );
    query_posts($args);
?> 
<?php /* Start the Loop */ ?>
<?php while ( have_posts() ) : the_post(); ?>
    <?php get_template_part( 'content', get_post_format() ); ?>
<?php endwhile; ?>

<?php
$query_args  = array(
    'post_type' => 'post',
    'orderby' => 'meta_value',
    'order' => 'DESC',
    'meta_query' => array(
        'relation' => 'OR',
         array(
            'key' => 'Likes',
            'compare' => 'NOT EXISTS',
            'type' => 'numeric'
         ),
         array(
            'key' => 'Likes',
            'compare' => 'EXISTS',
            'type' => 'numeric'
         )
     )
);
$loop = new WP_Query($query_args);
if ($loop->have_posts()):
    while($loop->have_posts()):
        $loop->the_post();
?>
        <a href="<?php the_permalink(); ?>">
            <div>
                <h3><?php echo the_title();?></h3>
                <p><?php echo the_content(); ?></p>
            </div>
        </a>
<?php
    endwhile;
endif;
?>

<?php $post_custom = get_post_custom( get_the_ID() ); ?>
Likes: <?php echo (int)$post_custom['Likes'][0]; ?> |
Dislikes: <?php echo (int)$post_custom['Dislikes'][0]; ?>

<?php /* Start the Loop */ ?>
<?php while ( have_posts() ) : the_post(); ?>
<?php get_template_part( 'content', get_post_format() ); ?>

<?php /* Get and display number of likes and dislikes */ ?>
<?php $post_custom = get_post_custom( get_the_ID() ); ?>
Likes: <?php echo (int)$post_custom['Likes'][0]; ?> |
Dislikes: <?php echo (int)$post_custom['Dislikes'][0]; ?>
<?php endwhile; ?>

<?php $post_custom = get_post_custom( get_the_ID() ); ?>
Likes: <?php echo (int)$post_custom['Likes'][0]; ?> |
Dislikes: <?php echo (int)$post_custom['Dislikes'][0]; ?>

/**
 * Action triggered when visitor votes.
 * 
 * args:
 * [identifier] - Identifier of the Like button (Read more: https://likebtn.com/en/wordpress-like-button-plugin#identifier)
 * [entity_name] - The Like button code of the entity to which Like button is attached: post, page, comment, attachment, user, product, bp_activity_post, bp_activity_update, bp_activity_comment, bp_activity_topic, bp_member, bbp_post, bbp_user, um_user. If the Like button is added using HTML-code or shortcode and not attached to any WordPress entity entity_name is equals to: custom_item
 * [entity_id] - ID of the WordPress entity to which the Like button is connected.
 * [type] - Type of the vote: 1 - like, -1 - dislike, 0 - vote canceled
 * [act] - The action applied to the vote: a - new vote registered, u - voter changed his opinion from like to dislike and vice versa, r - voter canceled his previous vote. 
 * [user_id] - ID of the voting user, can be empty if anonymous visitor is voting (Example: 3)
 * [ip] - IP-address of the voter (Example: 75.19.150.29)
 * [lat] - Lattitude of the voter (Example: 65,3619)
 * [lng] - Longitude of the voter (Example: 27,393101)
 * [created_at] - Date and time of the vote (Example: 2016-11-09 01:48:57)
 */
function likebtn_vote_action($args)
{
    // Get ID of the author of the entity for which visitor just voted
    $author_id = _likebtn_get_author_id($args['entity_name'], $args['entity_id']);
    if (!$author_id || $author_id == $args['user_id']) {
        return;
    }

    $author_data = get_userdata($author_id);
    if (!$author_data || empty($author_data->user_email)) {
        return;
    }

    $type_title = '';
    if ($args['type'] == 1) {
        $type_title = 'like';
    } elseif ($args['type'] == -1) {
        $type_title = 'dislike';
    } else {
        return;
    }

    $entity_name_title = mb_strtolower(_likebtn_get_entity_name_title($args['entity_name'], true));
    $entity_title = _likebtn_get_entity_title($args['entity_name'], $args['entity_id']);
    $entity_url = _likebtn_get_entity_url($args['entity_name'], $args['entity_id']);

    // Adjust the block of below according your needs
    $domain = parse_url(get_home_url(), PHP_URL_HOST);
    $to = $author_data->user_email;
    $subject = "Your ".$entity_name_title." received a {$type_title} at {$domain}!";
    $from = "noreply@".$domain;
    $reply_to = "postmaster@".$domain;
    $body = "
        Hi {$author_data->display_name}!<br/><br/>
        Congratulations! Your <a href=\"{$entity_url}\">{$entity_title}</a> {$entity_name_title} has just received a <strong>{$type_title}</strong>.<br/><br/>
        <span style=\"color:#808080\">--<br/>
        With best wishes,<br/>
        {$domain}</span>
    ";

    $headers = "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=\"utf-8\"\r\n";
    $headers .= 'From: '.$from."\r\n";
    if ($reply_to) {
        $headers .= "Reply-To: ".$reply_to."\r\n";
    }
    $subject = '=?UTF-8?B?'.base64_encode($subject).'?=';

    return mail($to, $subject, $body, $headers);
}

add_action('likebtn_vote', 'likebtn_vote_action');

if (typeof(LikeBtn) != "undefined") {
    LikeBtn.init();
}

remove_filter('the_content', 'paged_post_the_content_filter');
$ppscontent .= apply_filters('the_content', $post->post_content);