Created
January 6, 2014 13:32
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clean.php for WordPress. Clean wp_head() and other stuff like dashboard widgets.
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| <?php | |
| /** | |
| * Clean wp_head() | |
| * | |
| * Remove feed links | |
| * Remove extra feed links | |
| * Remove RSD & Windows Live Writer links | |
| * Remove WP version | |
| * Remove nav links | |
| */ | |
| function clean_head() { | |
| // Originally from http://wpengineer.com/1438/wordpress-header/ | |
| remove_action('wp_head', 'feed_links', 2); // Remove classic feeds links | |
| remove_action('wp_head', 'feed_links_extra', 3); // Remove junk feeds links | |
| remove_action('wp_head', 'rsd_link'); // Remove Really Simple Discovery link | |
| remove_action('wp_head', 'wlwmanifest_link'); // Remove Windows Live Writer link | |
| remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0); // Remove nav links | |
| remove_action('wp_head', 'wp_generator'); // Remove WP Version | |
| remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0); // Remove posts shortlinks | |
| // Remove "Recents comments" default styles in <head> | |
| global $wp_widget_factory; | |
| remove_action('wp_head', array($wp_widget_factory->widgets['WP_Widget_Recent_Comments'], 'recent_comments_style')); | |
| } | |
| add_action('init', 'clean_head'); | |
| /** | |
| * Remove the WordPress version from RSS feeds | |
| */ | |
| add_filter('the_generator', '__return_false'); | |
| /** | |
| * Clean up language_attributes() used in <html> tag | |
| * | |
| * Remove dir="ltr" | |
| */ | |
| function clean_lang_attr() { | |
| $attributes = array(); | |
| $output = ''; | |
| if (is_rtl()) { | |
| $attributes[] = 'dir="rtl"'; | |
| } | |
| $lang = get_bloginfo('language'); | |
| if ($lang) { | |
| $attributes[] = "lang=\"$lang\""; | |
| } | |
| $output = implode(' ', $attributes); | |
| $output = apply_filters('clean_lang_attr', $output); | |
| return $output; | |
| } | |
| add_filter('language_attributes', 'clean_lang_attr'); | |
| /** | |
| * Clean up output of stylesheet <link> tags | |
| * Before : <link rel='stylesheet' id='my-file-css' href='my-file.css' type='text/css' media='all' /> | |
| * After : <link rel="stylesheet" href="my-file.css" /> (+ media="..." if required) | |
| */ | |
| function clean_style($input) { | |
| preg_match_all("!<link rel='stylesheet'\s?(id='[^']+')?\s+href='(.*)' type='text/css' media='(.*)' />!", $input, $matches); | |
| // Only display media if it is meaningful | |
| $media = $matches[3][0] !== '' && $matches[3][0] !== 'all' ? ' media="' . $matches[3][0] . '"' : ''; | |
| return '<link rel="stylesheet" href="' . $matches[2][0] . '"' . $media . '>' . "\n"; | |
| } | |
| add_filter('style_loader_tag', 'clean_style'); | |
| /** | |
| * Add and remove body_class() classes | |
| */ | |
| function clean_body_class($classes) { | |
| // Add post/page slug | |
| if (is_single() || is_page() && !is_front_page()) { | |
| $classes[] = basename(get_permalink()); | |
| } | |
| // Remove unnecessary classes | |
| $home_id_class = 'page-id-' . get_option('page_on_front'); | |
| $remove_classes = array( | |
| 'page-template-default', | |
| $home_id_class | |
| ); | |
| $classes = array_diff($classes, $remove_classes); | |
| return $classes; | |
| } | |
| add_filter('body_class', 'clean_body_class'); | |
| /** | |
| * Remove unnecessary dashboard widgets | |
| * | |
| * @link http://www.deluxeblogtips.com/2011/01/remove-dashboard-widgets-in-wordpress.html | |
| */ | |
| function clean_dashboard_widgets() { | |
| remove_meta_box('dashboard_plugins', 'dashboard', 'normal'); // Popular plugins | |
| remove_meta_box('dashboard_primary', 'dashboard', 'normal'); // WordPress.org feeds | |
| remove_meta_box('dashboard_secondary', 'dashboard', 'normal'); // WordPress news | |
| remove_meta_box('dashboard_quick_press', 'dashboard', 'normal'); // Quick press (or quick draft) | |
| remove_meta_box('dashboard_recent_drafts', 'dashboard', 'normal'); // Recent drafts | |
| remove_meta_box('dashboard_incoming_links', 'dashboard', 'normal'); // Incoming links | |
| } | |
| add_action('admin_init', 'clean_dashboard_widgets'); | |
| /** | |
| * Remove unnecessary self-closing tags | |
| */ | |
| function clean_self_closing($input) { | |
| return str_replace(' />', '>', $input); | |
| } | |
| add_filter('get_avatar', 'clean_self_closing'); // <img /> | |
| add_filter('comment_id_fields', 'clean_self_closing'); // <input /> | |
| add_filter('post_thumbnail_html', 'clean_self_closing'); // <img /> | |
| /** | |
| * Redirects search results from /?s=query to /search/query/, converts %20 to + | |
| * Add "add_theme_support('nice-search');" after your 'after_setup_theme' action. | |
| * | |
| * @link http://txfx.net/wordpress-plugins/nice-search/ | |
| */ | |
| function nice_search() { | |
| global $wp_rewrite; | |
| if (!isset($wp_rewrite) || !is_object($wp_rewrite) || !$wp_rewrite->using_permalinks()) { | |
| return; | |
| } | |
| $search_base = $wp_rewrite->search_base; | |
| if (is_search() && !is_admin() && strpos($_SERVER['REQUEST_URI'], "/{$search_base}/") === false) { | |
| wp_redirect(home_url("/{$search_base}/" . urlencode(get_query_var('s')))); | |
| exit(); | |
| } | |
| } | |
| if (current_theme_supports('nice-search')) { | |
| add_action('template_redirect', 'nice_search'); | |
| } | |
| /** | |
| * Don't return the default description in the RSS feed if it hasn't been changed | |
| */ | |
| function clean_default_desc($bloginfo) { | |
| $default_tagline = 'Just another WordPress site'; | |
| return ($bloginfo === $default_tagline) ? '' : $bloginfo; | |
| } | |
| add_filter('get_bloginfo_rss', 'clean_default_desc'); | |
| /** | |
| * Remove wp version param from any enqueued scripts | |
| * Used this function when you build your theme. | |
| */ | |
| function clean_wp_ver_css_js( $src ) { | |
| if ( strpos( $src, 'ver=' ) ) | |
| $src = remove_query_arg( 'ver', $src ); | |
| return $src; | |
| } | |
| add_filter( 'style_loader_src', 'clean_wp_ver_css_js', 9999 ); | |
| add_filter( 'script_loader_src', 'clean_wp_ver_css_js', 9999 ); |
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