* @license MIT License
* @version 2020.04.12
*/
// 标题配置
function title($title, $sep)
{
global $paged, $page;
if (is_feed()) {
return $title;
}
$title .= get_bloginfo('name');
$site_description = get_bloginfo('description', 'display');
if ($site_description && (is_home() || is_front_page())) {
$title = "{$title} {$sep} {$site_description}";
}
if ($paged >= 2 || $page >= 2) {
$title = "{$title} {$sep} " . sprintf(__('第 %s 页', 'kratos'), max($paged, $page));
}
return $title;
}
add_filter('wp_title', 'title', 10, 2);
// Keywords 配置
function keywords()
{
if (is_home() || is_front_page()) {
echo kratos_option('seo_keywords');
} elseif (is_category()) {
echo kratos_option('seo_keywords') . ',';
single_cat_title();
} elseif (is_single()) {
echo trim(wp_title('', false)) . ',';
echo kratos_option('seo_keywords') . ',';
if (has_tag()) {
foreach (get_the_tags() as $tag) {
echo $tag->name . ',';
}
}
foreach (get_the_category() as $category) {
echo $category->cat_name . ',';
}
} elseif (is_search()) {
echo kratos_option('seo_keywords') . ',';
the_search_query();
} else {
echo kratos_option('seo_keywords') . ',';
echo trim(wp_title('', false));
}
}
// Description 配置
function description()
{
if (is_home() || is_front_page()) {
echo trim(kratos_option('seo_description'));
} elseif (is_category()) {
$description = strip_tags(category_description());
echo trim($description);
} elseif (is_single()) {
if (get_the_excerpt()) {
echo get_the_excerpt();
} else {
global $post;
$description = trim(str_replace(array("\r\n", "\r", "\n", " ", " "), " ", str_replace("\"", "'", strip_tags($post->post_content))));
echo mb_substr($description, 0, 220, 'utf-8');
}
} elseif (is_search()) {
echo '「';
the_search_query();
echo '」共找到 ';
global $wp_query;
echo $wp_query->found_posts;
echo ' 个记录';
} elseif (is_tag()) {
$description = strip_tags(tag_description());
echo trim($description);
} else {
$description = strip_tags(term_description());
echo trim($description);
}
}
// robots.txt 配置
add_filter('robots_txt', function ($output, $public) {
if ('0' == $public) {
return "User-agent: *\nDisallow: /\n";
} else {
if (!empty(kratos_option('seo_robots'))) {
$output = esc_attr(strip_tags(kratos_option('seo_robots')));
}
return $output;
}
}, 10, 2);
// 哀悼黑白站点
function mourning()
{
if (is_home() && kratos_option('g_rip', false)) {
echo '';
}
}
// 抓取图片链接（搜索引擎或者社交工具分享时抓取图片的链接）
function share_thumbnail_url()
{
global $post;
if (has_post_thumbnail($post->ID)) {
$post_thumbnail_id = get_post_thumbnail_id($post);
$img = wp_get_attachment_image_src($post_thumbnail_id, 'full');
$img = $img[0];
} else {
$content = $post->post_content;
preg_match_all('//sim', $content, $strResult, PREG_PATTERN_ORDER);
if (!empty($strResult[1])) {
$img = $strResult[1][0];
} else {
$img = kratos_option('seo_shareimg', ASSET_PATH . '/assets/img/default.jpg');
}
}
return $img;
}
// 支持上传 svg
add_filter('upload_mimes', 'upload_svg');
function upload_svg($existing_mimes = array())
{
$existing_mimes['svg'] = 'image/svg+xml';
return $existing_mimes;
}