由於 Emoji 表情圖標是直接引用的 WordPress.org 的 CDN 源，直接使用會導致網站速度變慢，同時對於做 SEO 站羣的用户來説，一般都用不到 Emoji 表情圖標，還是直接禁用的比較好。
/** * Disable the emoji's */ function disable_emojis() { remove_action( 'wp_head', 'print_emoji_detection_script', 7 ); remove_action( 'admin_print_scripts', 'print_emoji_detection_script' ); remove_action( 'wp_print_styles', 'print_emoji_styles' ); remove_action( 'admin_print_styles', 'print_emoji_styles' ); remove_filter( 'the_content_feed', 'wp_staticize_emoji' ); remove_filter( 'comment_text_rss', 'wp_staticize_emoji' ); remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' ); add_filter( 'tiny_mce_plugins', 'disable_emojis_tinymce' ); add_filter( 'wp_resource_hints', 'disable_emojis_remove_dns_prefetch', 10, 2 ); } add_action( 'init', 'disable_emojis' ); /** * Filter function used to remove the tinymce emoji plugin. * * @param array $plugins * @return array Difference betwen the two arrays */ function disable_emojis_tinymce( $plugins ) { if ( is_array( $plugins ) ) { return array_diff( $plugins, array( 'wpemoji' ) ); } return array(); } /** * Remove emoji CDN hostname from DNS prefetching hints. * * @param array $urls URLs to print for resource hints. * @param string $relation_type The relation type the URLs are printed for. * @return array Difference betwen the two arrays. */ function disable_emojis_remove_dns_prefetch( $urls, $relation_type ) { if ( 'dns-prefetch' == $relation_type ) { // Strip out any URLs referencing the WordPress.org emoji location $emoji_svg_url_bit = 'https://s.w.org/images/core/emoji/'; foreach ( $urls as $key => $url ) { if ( strpos( $url, $emoji_svg_url_bit ) !== false ) { unset( $urls[$key] ); } } } return $urls; } 如果是有需要可以考慮使用本地化的 Emoji 表情圖標插件：
