How can I get values count from wp_commentmeta?

Put the following function in your Theme’s functions.php and then put <?php echo tnc_reactions_count($post->ID); ?> in your single.php to output the numbers. Let me know if it works as I have not tested it completely.

function tnc_reactions_count($post_id){
    global $wpdb;
    $comments_table = $wpdb->prefix.'comments';
    $commentsmeta_table = $wpdb->prefix.'commentmeta';
    $get_post_comments = $wpdb->get_results( "SELECT * FROM $comments_table WHERE comment_post_ID='$post_id'", OBJECT );
    $funny_total = 0;
    $sad_total = 0;
    $hate_total = 0;
    $good_total = 0;

    foreach ($get_post_comments as $key => $value) {
        $comment_id = $value->comment_ID;
        $query_reaction = $wpdb->get_results( "SELECT * FROM $commentsmeta_table WHERE `comment_id`='$comment_id' AND `meta_key`='comments_reactions'", OBJECT );

        foreach ($query_reaction as $key => $value) {

            $get_reaction = $value->meta_value;

            switch ($get_reaction) {
                case 'funny':
                    $funny_total += 1;
                    break;

                case 'sad':
                    $sad_total += 1;
                    break;

                case 'hate':
                    $hate_total += 1;
                    break;

                case 'good':
                    $good_total += 1;
                    break;
            }
        }
    }
    $output="<h3>Reactions</h3>";
    $output .= 'Funny: '.$funny_total;
    $output .= 'Sad: '.$sad_total;
    $output .= 'Hate: '.$hate_total;
    $output .= 'Good: '.$good_total;

    return $output;
}

Thanks