WordPress,全球广泛使用的知名免费开源网站博客程序。WordPress是一种使用PHP语言开发的博客平台,用户可以在支持PHP和MySQL数据库的服务器上架设自己的网站,也可以把WordPress 当作一个内容管理系统(CMS)来使用。WordPress 还是一个免费的开源项目,在GNU通用公共许可证下授权发布。
  
 
WordPress新版必备优化代码:
  <!–添加优化代码到主题目录functions.php文件–>
  /*彻底关闭自动更新(核心程序/主题/插件/翻译自动更新*/
  add_filter(‘automatic_updater_disabled’, ‘__return_true’);
  /*关闭更新检查定时作业*/
  remove_action(‘init’, ‘wp_schedule_update_checks’);
  /*移除已有的版本检查定时作业*/
  wp_clear_scheduled_hook(‘wp_version_check’);
  /*移除已有的插件更新定时作业*/
  wp_clear_scheduled_hook(‘wp_update_plugins’);
  /*移除已有的主题更新定时作业*/
  wp_clear_scheduled_hook(‘wp_update_themes’);
  /*移除已有的自动更新定时作业*/
  wp_clear_scheduled_hook(‘wp_maybe_auto_update’);
  /*移除后台内核更新检查*/
  remove_action( ‘admin_init’, ‘_maybe_update_core’ );
  /*移除后台插件更新检查*/
  remove_action( ‘load-plugins.php’, ‘wp_update_plugins’ );
  remove_action( ‘load-update.php’, ‘wp_update_plugins’ );
  remove_action( ‘load-update-core.php’, ‘wp_update_plugins’ );
  remove_action( ‘admin_init’, ‘_maybe_update_plugins’ );
  /*移除后台主题更新检查*/
  remove_action( ‘load-themes.php’, ‘wp_update_themes’ );
  remove_action( ‘load-update.php’, ‘wp_update_themes’ );
  remove_action( ‘load-update-core.php’, ‘wp_update_themes’ );
  remove_action( ‘admin_init’, ‘_maybe_update_themes’ );
  /*关闭程序更新提示*/
  add_filter( ‘pre_site_transient_update_core’, function($a){ return null; });
  /*关闭插件更新提示*/
  add_filter(‘pre_site_transient_update_plugins’, function($a){return null;});
  /*关闭主题更新提示*/
  add_filter(‘pre_site_transient_update_themes’, function($a){return null;});
  //关闭WordPress的XML-RPC功能
  add_filter(‘xmlrpc_enabled’, ‘__return_false’);
  /* 关闭XML-RPC的pingback端口 */
  add_filter( ‘xmlrpc_methods’, ‘remove_xmlrpc_pingback_ping’ );
  function remove_xmlrpc_pingback_ping( $methods ) {
  unset( $methods[‘pingback.ping’] );
  return $methods;
  }
  //禁用 pingbacks, enclosures, trackbacks
  remove_action( ‘do_pings’, ‘do_all_pings’, 10 );
  //去掉 _encloseme 和 do_ping 操作
  remove_action( ‘publish_post’,’_publish_post_hook’,5 );
  /* 禁止加载s.w.org获取表情和头像 */
  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’);
  function remove_dns_prefetch( $hints, $relation_type ) {
  if ( ‘dns-prefetch’ === $relation_type ) {
  return array_diff( wp_dependencies_unique_hosts(), $hints );
  }
  return $hints;
  }
  add_filter( ‘wp_resource_hints’, ‘remove_dns_prefetch’, 10, 2 );
  /* 完全禁止REST API、移除wp-json链接 */
  function lerm_disable_rest_api( $access ) {
  return new WP_Error(
  ‘Stop!’,
  ‘Soooooryyyy’,
  array(
  ‘status’ => 403,
  )
  );
  }
  add_filter( ‘rest_authentication_errors’, ‘lerm_disable_rest_api’ );
  remove_action( ‘wp_head’, ‘rest_output_link_wp_head’, 10 );
  /* 禁止查询网站静态资源连接版本字符 */
  function _remove_script_version ( $src ){
    $parts = explode( ‘?’, $src );
    return $parts[0];
  }
  add_filter( ‘script_loader_src’, ‘_remove_script_version’, 15, 1 );
  add_filter( ‘style_loader_src’, ‘_remove_script_version’, 15, 1 );
  /* 移除前端网页源代码内的头部冗余代码 */
  remove_action( ‘wp_head’, ‘feed_links_extra’, 3 ); 
  remove_action( ‘wp_head’, ‘rsd_link’ ); 
  remove_action( ‘wp_head’, ‘wlwmanifest_link’ ); 
  remove_action( ‘wp_head’, ‘index_rel_link’ ); 
  remove_action( ‘wp_head’, ‘start_post_rel_link’, 10, 0 ); 
  remove_action( ‘wp_head’, ‘wp_generator’ ); 
  /* 禁止新版文章编辑器加载前端样式 */
  function wpassist_remove_block_library_css(){
      wp_dequeue_style( ‘wp-block-library’ );
  } 
  remove_action( ‘wp_enqueue_scripts’, ‘wp_common_block_scripts_and_styles’ );
  add_action( ‘wp_enqueue_scripts’, ‘wpassist_remove_block_library_css’ );
  /* 移除新版本站点健康状态面板和菜单项 */
  add_action( ‘admin_menu’, ‘remove_site_health_menu’ ); 
  function remove_site_health_menu(){
  remove_submenu_page( ‘tools.php’,’site-health.php’ ); 
  }
  /* 禁用5.5版后自带的XML站点地图 */
  add_filter( ‘wp_sitemaps_enabled’, ‘__return_false’ );
  /* 移除前后台顶部工具栏指定菜单 */
  function admin_bar_item ( WP_Admin_Bar $admin_bar ) {
  $admin_bar->remove_menu(‘wp-logo’); //移动wp的logo
  $admin_bar->remove_menu(‘site-name’); //移动站点名称
  $admin_bar->remove_menu(‘updates’); //移动更新提示
  $admin_bar->remove_menu(‘comments’); //移动评论提示
  /*$admin_bar->remove_menu(‘new-content’); //移除新建按钮  */ 
  }
  add_action( ‘admin_bar_menu’, ‘admin_bar_item’, 500 );
  //移除后台仪表盘站点健康状态面板
  add_action(‘wp_dashboard_setup’, ‘remove_site_health_dashboard_widget’);
  function remove_site_health_dashboard_widget()
  {
      remove_meta_box(‘dashboard_site_health’, ‘dashboard’, ‘normal’);
  }
  //移除后台仪表盘菜单:站点健康状态
  add_action( ‘admin_menu’, ‘remove_site_health_menu’ ); 
  function remove_site_health_menu(){
  remove_submenu_page( ‘tools.php’,’site-health.php’ ); 
  }
  //移除后台仪表盘菜单:活动、新闻
  function bzg_remove_dashboard_widgets() {
  global $wp_meta_boxes;
  #移除 “活动” 
  unset($wp_meta_boxes[‘dashboard’][‘normal’][‘core’][‘dashboard_activity’]);
  #移除 “WordPress 新闻” 
  unset($wp_meta_boxes[‘dashboard’][‘side’][‘core’][‘dashboard_primary’]);
  }
  add_action(‘wp_dashboard_setup’, ‘bzg_remove_dashboard_widgets’ );
  //移除后台仪表盘菜单:帮助
  function bzg_remove_help() {
  get_current_screen()->remove_help_tabs();
  }
  add_action(‘admin_head’, ‘bzg_remove_help’);
  //移除后台页面title标题的wordpress后缀
  add_filter(‘admin_title’, ‘delAdminTitle’, 10, 2);
  function delAdminTitle($admin_title, $title){
      return $title.’ ‹ ‘.get_bloginfo(‘name’);
  }
  //移除登陆页面title标题的wordpress后缀
  add_filter(‘login_title’, ‘remove_login_title’, 10, 2);
  function remove_login_title($login_title, $title){
  return $title.’ ‹ ‘.get_bloginfo(‘name’);
  }
  /* 彻底禁止4.4+版之后响应式图片功能及缩略图裁剪功能*/
  // 禁止生成图像尺寸
  function zm_customize_image_sizes( $sizes ){
  unset( $sizes[ ‘thumbnail’ ]);
  unset( $sizes[ ‘medium’ ]);
  unset( $sizes[ ‘medium_large’ ] );
  unset( $sizes[ ‘large’ ]);
  unset( $sizes[ ‘full’ ] );
  unset( $sizes[‘1536×1536’] );
  unset( $sizes[‘2048×2048’] );
  return $sizes;
  }
   
  add_filter( ‘intermediate_image_sizes_advanced’, ‘zm_customize_image_sizes’ );
   
  // 禁止缩放图片尺寸
  add_filter(‘big_image_size_threshold’, ‘__return_false’);
   
  // 禁止生成其它图像尺寸
  function shapeSpace_disable_other_image_sizes() { 
  // 禁止通过set_post_thumbnail_size()函数生成的图片尺寸
  remove_image_size(‘post-thumbnail’); 
  // 禁止添加其它图像尺寸
  remove_image_size(‘another-size’);
  }
  add_action(‘init’, ‘shapeSpace_disable_other_image_sizes’);
  //切换经典文章编辑器(v5.x开始默认古腾堡编辑器)
  add_filter(‘use_block_editor_for_post’, ‘__return_false’);
  //替换评论用户头像链接为国内镜像加速访问
  add_filter(‘get_avatar’, function ($avatar) {
  return str_replace([
  ‘www.gravatar.com/avatar/’,
  ‘0.gravatar.com/avatar/’,
  ‘1.gravatar.com/avatar/’,
  ‘2.gravatar.com/avatar/’,
  ‘secure.gravatar.com/avatar/’,
  ‘cn.gravatar.com/avatar/’
  ], ‘cravatar.cn/’, $avatar);
  });
  //取消内容转义
  remove_filter(‘the_content’, ‘wptexturize’);
  //取消摘要转义
  remove_filter(‘the_excerpt’, ‘wptexturize’);
  //取消评论转义
  remove_filter(‘comment_text’, ‘wptexturize’);
  //禁止转义引号字符
  remove_filter(‘the_content’, ‘wptexturize’);    // 禁止英文引号转义为中文引号
  //文章插入图片自动移除 img 的 width、height、class 属性;
  add_filter( ‘post_thumbnail_html’, ‘fanly_remove_images_attribute’, 10 );
  add_filter( ‘image_send_to_editor’, ‘fanly_remove_images_attribute’, 10 );
  function fanly_remove_images_attribute( $html ) {
   //$html = preg_replace( ‘/(width|height)=”d*”s/’, “”, $html );
   $html = preg_replace( ‘/width=”(d*)”s+height=”(d*)”s+class=”[^”]*”/’, “”, $html );
   $html = preg_replace( ‘/  /’, “”, $html );
   return $html;
  }
  //自适应图片删除width和height
  function ludou_remove_width_height_attribute($content){
    preg_match_all(‘/<[img|IMG].*?src=[‘|”](.*?(?:[.gif|.jpg|.png.webp]))[‘|”].*?[/]?>/’, $content, $images);
    if(!empty($images)) {
      foreach($images[0] as $index => $value){
        $new_img = preg_replace(‘/(width|height)=”d*”s/’, “”, $images[0][$index]);
        $content = str_replace($images[0][$index], $new_img, $content);
      }
    }
    return $content;
  }
  //判断是否是移动设备浏览
  if(wp_is_mobile()) {
     #删除文章内容中img的width和height属性
     add_filter(‘the_content’, ‘ludou_remove_width_height_attribute’, 99);
  }
  /* 删除文章时删除图片附件 */
  function delete_post_and_attachments($post_ID) {
  global $wpdb;
  #删除特色图片
  $thumbnails = $wpdb->get_results( “SELECT * FROM $wpdb->postmeta WHERE meta_key = ‘_thumbnail_id’ AND post_id = $post_ID” );
  foreach ( $thumbnails as $thumbnail ) {
  wp_delete_attachment( $thumbnail->meta_value, true );
  }
  #删除图片附件
  $attachments = $wpdb->get_results( “SELECT * FROM $wpdb->posts WHERE post_parent = $post_ID AND post_type = ‘attachment'” );
  foreach ( $attachments as $attachment ) {
  wp_delete_attachment( $attachment->ID, true );
  }
  $wpdb->query( “DELETE FROM $wpdb->postmeta WHERE meta_key = ‘_thumbnail_id’ AND post_id = $post_ID” );
  }
  add_action(‘before_delete_post’, ‘delete_post_and_attachments’);
  新版变化
  News & Announcements – WordPress.org
  https://wordpress.org/news/
系统要求
  WordPress 5.x以上版本最低运行需求:
  PHP5.6或更高版,建议PHP7.2稳定版
  MySQL5.6或更高版,建议用5.6稳定版
下载地址
WordPress 6.1 简体中文正式版 (2022/11/02)
https://cn.wordpress.org/download/releases
https://cn.wordpress.org/wordpress-6.1-zh_CN.zip
https://cn.wordpress.org/wordpress-6.1-zh_CN.tar.gz

 
				
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