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 最低运行需求：

PHP5.6或更高版，建议7.2稳定版

MySQL5.6或更高版，建议5.6稳定版

下载地址

WordPress 6.6.0 简体中文正式版 (2024/07/19)

https://cn.wordpress.org/download/releases

https://cn.wordpress.org/latest-zh_CN.zip

https://cn.wordpress.org/latest-zh_CN.tar.gz