Cách hiển thị lượt xem bài đăng trên theme GeneratePress

//CODE ĐẾM LƯỢT XEM

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');
$count = 0;
} else {
$count = (int) $count;
}
if ($count === 0) {
return '';
}
$formatted_count = number_format($count, 0, ',', '.');
$icon_html = '<i class="fa fa-eye" aria-hidden="true" style="font-size:110%; margin-right:5px;"></i>';
return '<span class="post-views">' . $icon_html . $formatted_count . ' lượt xem |</span>';
}

function setPostViews($postID) {
if (empty($_SERVER['HTTP_USER_AGENT'])) {
return;
}
if (preg_match('/bot|crawl|spider|google|bing|yahoo|facebook|twitter|whatsapp/i', $_SERVER['HTTP_USER_AGENT'])) {
return;
}
$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 = (int) $count + 1;
update_post_meta($postID, $count_key, $count);
}
}

add_filter('generate_post_date_output', function($output, $time_string) {
$post_id = get_the_ID();
$views = getPostViews($post_id);
return str_replace('</span>', ' | ' . $views . '</span>', $output);
}, 10, 2);

add_action('wp_head', function() {
if (is_single()) {
setPostViews(get_the_ID());
}
}, 1);

add_action('wp_enqueue_scripts', function() {
if (is_single()) {
wp_enqueue_style(
'font-awesome',
'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css',
[],
'4.7.0'
);
}
}, 10);

add_filter('update_post_metadata', function($check, $object_id, $meta_key) {
if ($meta_key === 'post_views_count') {
wp_cache_delete($object_id, 'post_meta');
}
return $check;
}, 10, 3);

//HẾT CODE ĐẾM LƯỢT XEM