WordPress程序/functions.php收集整理的各种自定义优化代码分享

WordPress程序/functions.php收集整理的各种自定义优化代码分享

<!--以下代码为主题目录下functions.php文件内代码!-->
//彻底关闭自动更新
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\' );

// 移除WP-JSON链接
remove_action( \'wp_head\', \'rest_output_link_wp_head\', 10 );
remove_action( \'wp_head\', \'wp_oembed_add_discovery_links\', 10 );
remove_action( \'template_redirect\', \'rest_output_link_header\', 11 );

// 禁止后台显示升级核心提示
add_filter(\'pre_site_transient_update_core\', create_function(\'$a\', \"return null;\"));

// 禁止后台显示插件升级提示
add_filter(\'pre_site_transient_update_plugins\', create_function(\'$a\', \"return null;\"));

// 禁止后台显示主题升级提示
add_filter(\'pre_site_transient_update_themes\', create_function(\'$a\', \"return null;\"));

// 把fonts.googleapis.com替换为fonts.useso.com
function bf_google_font($content)
{
return str_replace(\'fonts.googleapis.com\', \'fonts.useso.com\', $content);
return str_replace(\'ajax.googleapis.com\', \'ajax.useso.com\', $content);
}

// 关闭WordPress的XML-RPC功能（建议清空网站根目录下下xmlrpc.php内容）
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;
}

// 禁止后台加载谷歌字体
function wp_remove_open_sans_from_wp_core() {
wp_deregister_style( \'open-sans\' );
wp_register_style( \'open-sans\', false );
wp_enqueue_style(\'open-sans\',\'\');
}
add_action( \'init\', \'wp_remove_open_sans_from_wp_core\' );

// 禁用Open Sans
class Disable_Google_Fonts {
public function __construct() {
add_filter( \'gettext_with_context\', array( $this, \'disable_open_sans\' ), 888, 4 );
}
public function disable_open_sans( $translations, $text, $context, $domain ) {
if ( \'Open Sans font: on or off\' == $context && \'on\' == $text ) {
$translations = \'off\';
}
return $translations;
}
}
$disable_google_fonts = new Disable_Google_Fonts;

// 禁用 WordPress 的 JSON REST API
add_filter(\'json_enabled\', \'__return_false\');
add_filter(\'json_jsonp_enabled\', \'__return_false\');

// 阻止WordPress的PingBack端口
function no_self_ping( &$links ) {
$home = get_option( \'home\' );
foreach ( $links as $l => $link )
if ( 0 === strpos( $link, $home ) )
unset($links[$l]);
}
add_action( \'pre_ping\', \'no_self_ping\' );

// 屏蔽XML-RPC(pingback)功能，阻止pingback端口
add_filter(\'xmlrpc_enabled\', \'__return_false\');
add_filter(\'xmlrpc_methods\', \'remove_xmlrpc_pingback_ping\');
function remove_xmlrpc_pingback_ping( $methods ) {
unset( $methods[\'pingback.ping\'] );
return $methods;
}

// 通过多说服务器加速Gravatar头像
function mytheme_get_avatar($avatar) {
$avatar = str_replace(array(\"www.gravatar.com\",\"0.gravatar.com\",\"1.gravatar.com\",\"2.gravatar.com\"),\"gravatar.duoshuo.com\",$avatar);
return $avatar;
}
add_filter( \'get_avatar\', \'mytheme_get_avatar\', 10, 3 );

// 替换前端公共库jQuery到国内，加快后台访问
function my_modify_jquery() {
if (!is_admin()) {
wp_deregister_script(\'jquery\');
wp_deregister_script(\'jquery-form\');
wp_register_script(\'jquery\', (\'https://cdn.bootcss.com/jquery/2.2.4/jquery.min.js\'), false, null, true); 
wp_register_script(\'jquery-form\', (\'https://cdn.bootcss.com/jquery.form/4.2.2/jquery.form.min.js\'), array(jquery), null, true);
}
}

// 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/\'
], \'sdn.geekzu.org/avatar/\', $avatar);
});

// 禁用embeds功能
function disable_embeds_init() {
global $wp;
$wp->public_query_vars = array_diff( $wp->public_query_vars, array(
\'embed\',
) );
remove_action( \'rest_api_init\', \'wp_oembed_register_route\' );
add_filter( \'embed_oembed_discover\', \'__return_false\' );
remove_filter( \'oembed_dataparse\', \'wp_filter_oembed_result\', 10 );
remove_action( \'wp_head\', \'wp_oembed_add_discovery_links\' );
remove_action( \'wp_head\', \'wp_oembed_add_host_js\' );
add_filter( \'tiny_mce_plugins\', \'disable_embeds_tiny_mce_plugin\' );
add_filter( \'rewrite_rules_array\', \'disable_embeds_rewrites\' );
}
add_action( \'init\', \'disable_embeds_init\', 9999 );
function disable_embeds_tiny_mce_plugin( $plugins ) {
return array_diff( $plugins, array( \'wpembed\' ) );
}
function disable_embeds_rewrites( $rules ) {
foreach ( $rules as $rule => $rewrite ) {
if ( false !== strpos( $rewrite, \'embed=true\' ) ) {
unset( $rules[ $rule ] );
}
}
return $rules;
}
function disable_embeds_remove_rewrite_rules() {
add_filter( \'rewrite_rules_array\', \'disable_embeds_rewrites\' );
flush_rewrite_rules();
}
register_activation_hook( __FILE__, \'disable_embeds_remove_rewrite_rules\' );
function disable_embeds_flush_rewrite_rules() {
remove_filter( \'rewrite_rules_array\', \'disable_embeds_rewrites\' );
flush_rewrite_rules();
}
register_deactivation_hook( __FILE__, \'disable_embeds_flush_rewrite_rules\' );

// WordPress关闭自动更新版本升级功能且保留提醒；
add_filter( \'automatic_updater_disabled\', \'__return_true\' );

// 禁止WordPress头部加载境外域名s.w.org
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 );

// 解决后台加载ajax.googleapis无法访问
function hc_cdn_callback($buffer) {
return str_replace(\'ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/themes/smoothness/jquery-ui.css\', \'cdn.bootcss.com/jqueryui/1.12.1/jquery-ui.min.css\', $buffer);
}
function hc_buffer_start() {
ob_start(\"hc_cdn_callback\");
}
function izt_buffer_end() {
ob_end_flush();
}
add_action(\'init\', \'hc_buffer_start\');
add_action(\'shutdown\', \'hc_buffer_end\');

// 减少后台admin-ajax.php加载时间的方法
add_action( \'init\', \'my_deregister_heartbeat\', 1 );
function my_deregister_heartbeat() {
global $pagenow;
if ( \'post.php\' != $pagenow && \'post-new.php\' != $pagenow )
wp_deregister_script(\'heartbeat\');
}

// 更改作者存档前缀
add_action(\'init\', \'wpdaxue_change_author_base\');
function wpdaxue_change_author_base() {
global $wp_rewrite;
$author_slug = \'500\'; // 更改前缀为500
$wp_rewrite->author_base = $author_slug;
}

// 更改作者链接,防止会员ID泄露；
add_filter( \'author_link\', \'modify_author_link\', 10, 1 ); 
function modify_author_link( $link ) { 
$link = \'https://www.baidu.com/\'; //修改为自己需要的URL
return $link;  
}

// 禁用古腾堡方法一
// 1.禁用WP5.0+古滕堡反人类编辑器，使用Gutenberg模块经典文章编辑器;
add_filter(\'use_block_editor_for_post\', \'__return_false\');
// 2.禁止WordPress新版本文章编辑器前端加载样式文件
remove_action(\'wp_enqueue_scripts\', \'wp_common_block_scripts_and_styles\');

// 禁用古腾堡方法二
if( wb_opt(\'gutenberg_switch\') ) {
add_filter(\'use_block_editor_for_post_type\',function($is_user,$post_type){return false;},10,2);
//WordPress 5.0+移除 block-library CSS
add_action( \'wp_enqueue_scripts\', \'tonjay_remove_block_library_css\', 100 );
function tonjay_remove_block_library_css() {
wp_dequeue_style( \'wp-block-library\' );
}
}

// 自动给所有文章的外部链接添加nofollow属性（有助于SEO方面）
add_filter(\'the_content\',\'the_content_nofollow\',999);
function the_content_nofollow($content){
preg_match_all(\'/href=\"/go.php?url=KC4qPyk=\" rel=\"external nofollow\" /\',$content,$matches);
if($matches){
foreach($matches[1] as $val){
if( strpos($val,home_url())===false ) $content=str_replace(\"href=\\\"$val\\\"\", \"href=\\\"$val\\\" rel=\\\"external nofollow\\\" \",$content);
}
}
return $content;
}

// 发布文章主动推送到百度，加快收录保护原创,WordPress通用方式
if(!function_exists(\'Baidu_Submit\')){
function Baidu_Submit($post_ID) {
$WEB_TOKEN = \'\'; //这里请换成你的网站的百度主动推送的token值
$WEB_DOMAIN = get_option(\'home\');
// 已成功推送的文章不再推送
if(get_post_meta($post_ID,\'Baidusubmit\',true) == 1) return;
$url = get_permalink($post_ID);
$api = \'http://data.zz.baidu.com/urls?site=\'.$WEB_DOMAIN.\'&token=\'.$WEB_TOKEN;
$request = new WP_Http;
$result = $request->request( $api , array( \'method\' => \'POST\', \'body\' => $url , \'headers\' => \'Content-Type: text/plain\') );
$result = json_decode($result[\'body\'],true);
// 如果推送成功则在文章新增自定义栏目Baidusubmit，值为1
if (array_key_exists(\'success\',$result)) {
add_post_meta($post_ID, \'Baidusubmit\', 1, true);
}
}
add_action(\'publish_post\', \'Baidu_Submit\', 0);
}

// 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;
}

// 删除WordPress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\' ); 
}

// 删除头部冗余代码
function my_filter_head(){
remove_action( \'wp_head\',\'_admin_bar_bump_cb\');
remove_action( \'wp_head\',\'feed_links_extra\',3 );
remove_action( \'wp_head\',\'feed_links\',2 );
remove_action( \'wp_head\',\'rsd_link\' );
remove_action( \'wp_head\',\'wlwmanifest_link\' );
remove_action( \'wp_head\',\'index_rel_link\' );
remove_action( \'wp_head\',\'parent_post_rel_link\',10,0 );
remove_action( \'wp_head\',\'start_post_rel_link\',10,0 );
remove_action( \'wp_head\',\'adjacent_posts_rel_link\',10,0 );
remove_action( \'wp_head\',\'wp_generator\' );
}
add_action(\'get_header\',\'my_filter_head\');

// 删除emoji脚本
remove_action( \'admin_print_scripts\',   \'print_emoji_detection_script\');
remove_action( \'admin_print_styles\',    \'print_emoji_styles\');
remove_action( \'wp_head\',       \'print_emoji_detection_script\', 7);
remove_action( \'wp_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\');
remove_action( \'wp_head\', \'feed_links_extra\', 3 ); //去除评论feed
remove_action( \'wp_head\', \'feed_links\', 2 ); //去除文章feed
remove_action( \'wp_head\', \'rsd_link\' ); //针对Blog的远程离线编辑器接口
remove_action( \'wp_head\', \'wlwmanifest_link\' ); //Windows Live Writer接口
remove_action( \'wp_head\', \'index_rel_link\' ); //移除当前页面的索引
remove_action( \'wp_head\', \'parent_post_rel_link\', 10, 0 ); //移除后面文章的url
remove_action( \'wp_head\', \'start_post_rel_link\', 10, 0 ); //移除最开始文章的url
remove_action( \'wp_head\', \'wp_shortlink_wp_head\', 10, 0 );//自动生成的短链接
remove_action( \'wp_head\', \'adjacent_posts_rel_link\', 10, 0 ); ///移除相邻文章的url
remove_action( \'wp_head\', \'wp_generator\' ); // 移除版本号

// 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\\.bmp]))[\\\'|\"].*?[\\/]?>/\', $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;
}

// 删除默认缩略图
function v7v3_remove_image_size($sizes) {
unset( $sizes[\'small\'] );
unset( $sizes[\'medium\'] );
unset( $sizes[\'large\'] );
return $sizes;
}
add_filter(\'image_size_names_choose\', \'v7v3_remove_image_size\');

// 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\');

// 禁用自动生成的图片尺寸
function shapeSpace_disable_image_sizes($sizes) {
unset($sizes[\'thumbnail\']);    // disable thumbnail size
unset($sizes[\'medium\']);       // disable medium size
unset($sizes[\'large\']);        // disable large size
unset($sizes[\'medium_large\']); // disable medium-large size
unset($sizes[\'1536x1536\']);    // disable 2x medium-large size
unset($sizes[\'2048x2048\']);    // disable 2x large size
return $sizes;
}
add_action(\'intermediate_image_sizes_advanced\', \'shapeSpace_disable_image_sizes\');
// 禁用缩放尺寸
add_filter(\'big_image_size_threshold\', \'__return_false\');
// 禁用其他图片尺寸
function shapeSpace_disable_other_image_sizes() {
remove_image_size(\'post-thumbnail\'); // disable images added via set_post_thumbnail_size() 
remove_image_size(\'another-size\');   // disable any other added image sizes
}
add_action(\'init\', \'shapeSpace_disable_other_image_sizes\');

// 防止网站遭受恶意URL请求
if(strlen($_SERVER[\'REQUEST_URI\']) > 366 ||
strpos($_SERVER[\'REQUEST_URI\'], \"eval(\") ||
strpos($_SERVER[\'REQUEST_URI\'], \"base64\")) {
@header(\"HTTP/1.1 414 Request-URI Too Long\");
@header(\"Status: 414 Request-URI Too Long\");
@header(\"Connection: Close\");
@exit;
}

// 防止CC攻击
session_start(); //开启session
$timestamp = time();
$ll_nowtime = $timestamp;

// 判断session是否存在，如果存在从session取值，如果不存在进行初始化赋值！
if ($_SESSION){
$ll_lasttime = $_SESSION[\'ll_lasttime\'];
$ll_times = $_SESSION[\'ll_times\'] + 1;
$_SESSION[\'ll_times\'] = $ll_times;
}else{
$ll_lasttime = $ll_nowtime;
$ll_times = 1;
$_SESSION[\'ll_times\'] = $ll_times;
$_SESSION[\'ll_lasttime\'] = $ll_lasttime;
}

// 中文名图片上传改名
function tin_custom_upload_name($file){
if(preg_match(\'/[一-龥]/u\',$file[\'name\'])):
$ext=ltrim(strrchr($file[\'name\'],\'.\'),\'.\');
$file[\'name\']=preg_replace(\'#^www\\.#\', \'\', strtolower($_SERVER[\'SERVER_NAME\'])).\'_\'.date(\'Y-m-d_H-i-s\').\'.\'.$ext;
endif;
return $file;
}
add_filter(\'wp_handle_upload_prefilter\',\'tin_custom_upload_name\',5,1);

// 为网站全部页面添加canonical标签
function cx_archive_link( $paged = true ) {
$link = false;
if ( is_front_page() ) {
$link = home_url( \'/\' );
} else if ( is_home() && \"page\" == get_option(\'show_on_front\') ) {
$link = get_permalink( get_option( \'page_for_posts\' ) );
} else if ( is_tax() || is_tag() || is_category() ) {
$term = get_queried_object();
$link = get_term_link( $term, $term->taxonomy );
} else if ( is_post_type_archive() ) {
$link = get_post_type_archive_link( get_post_type() );
} else if ( is_author() ) {
$link = get_author_posts_url( get_query_var(\'author\'), get_query_var(\'author_name\') );
} else if ( is_single() ) {
$link = get_permalink( $id );
} else if ( is_archive() ) {
if ( is_date() ) {
if ( is_day() ) {
$link = get_day_link( get_query_var(\'year\'), get_query_var(\'monthnum\'), get_query_var(\'day\') );
} else if ( is_month() ) {
$link = get_month_link( get_query_var(\'year\'), get_query_var(\'monthnum\') );
} else if ( is_year() ) {
$link = get_year_link( get_query_var(\'year\') );
}
}
}
if ( $paged && $link && get_query_var(\'paged\') > 1 ) {
global $wp_rewrite;
if ( !$wp_rewrite->using_permalinks() ) {
$link = add_query_arg( \'paged\', get_query_var(\'paged\'), $link );
} else {
$link = user_trailingslashit( trailingslashit( $link ) . trailingslashit( $wp_rewrite->pagination_base ) . get_query_var(\'paged\'), \'archive\' );
}
}
echo \'\';
}
add_action(\'wp_head\', \'cx_archive_link\');

// Wordpress程序自定义全角转半角
$qmr_work_tags = array(
//\'the_title\', // 标题
\'the_content\', // 内容 *
//\'the_excerpt\', // 摘要 *
//\'single_post_title\', // 单篇文章标题
//\'comment_author\', // 评论作者
//\'comment_text\', // 评论内容 *
//\'link_description\', // 友链描述（已弃用，但还很常用）
//\'bloginfo\', // 博客信息
//\'wp_title\', // 网站标题
//\'term_description\', // 项目描述
//\'category_description\', // 分类描述
//\'widget_title\', // 小工具标题
//\'widget_text\' // 小工具文本
);
foreach ( $qmr_work_tags as $qmr_work_tag ) {
remove_filter ($qmr_work_tag, \'wptexturize\');
}

// 限制用户进入后台控制面板界面
function baw_no_admin_access() {
if( !current_user_can( \'administrator\' ) ) {
wp_redirect( home_url() );
die();
}
}
add_action( \'admin_init\', \'baw_no_admin_access\', 1 );

// SMTP发送邮件
function mail_smtp( $phpmailer ){
$phpmailer->From = \'admin@qq.com\'; //发件人邮箱
$phpmailer->FromName = \'腾讯网\'; //发件人名称
$phpmailer->Host = \'smtp.qq.com\'; //SMTP服务器地址
$phpmailer->Port = \'465\'; //SMTP端口，常用的有25、465、587
$phpmailer->SMTPSecure = \'ssl\'; //SMTP加密方式，常用的有SSL/TLS，port=25留空，465为ssl
$phpmailer->Username = \'admin@qq.com\'; //邮箱帐号
$phpmailer->Password = \'0123456789\'; //邮箱密码
$phpmailer->IsSMTP(); //使用SMTP发送
$phpmailer->SMTPAuth = true; //启用SMTPAuth服务
}
add_action(\'phpmailer_init\',\'mail_smtp\');

//增加后台用户管理显示注册时间和IP信息-开始
add_action( \'user_register\', \'log_ip\' );
function log_ip($user_id){
$ip = $_SERVER[\'REMOTE_ADDR\'];
update_user_meta( $user_id, \'signup_ip\', $ip );
}
add_action( \'wp_login\', \'insert_last_login\' );
function insert_last_login( $login ) {
global $user_id;
$user = get_userdatabylogin( $login );
update_user_meta( $user->ID, \'last_login\', current_time( \'mysql\' ) );
$last_login_ip = $_SERVER[\'REMOTE_ADDR\'];
update_user_meta( $user->ID, \'last_login_ip\', $last_login_ip );
}
add_filter(\'manage_users_columns\', \'add_user_additional_column\');
function add_user_additional_column($columns) {
//$columns[\'user_nickname\'] = \'用户昵称\';
//$columns[\'user_url\'] = \'用户网站\';
$columns[\'reg_time\'] = \'注册时间\';
$columns[\'signup_ip\'] = \'注册IP\';
$columns[\'last_login\'] = \'最后登录时间\';
$columns[\'last_login_ip\'] = \'最后登录IP\';
unset($columns[\'name\']);//移除姓名这一栏，如果需要保留，注释这行即可；
return $columns;
}
add_action(\'manage_users_custom_column\',  \'show_user_additional_column_content\', 10, 3);
function show_user_additional_column_content($value, $column_name, $user_id) {
$user = get_userdata( $user_id );

//用户昵称
//if ( \'user_nickname\' == $column_name )
//return $user->nickname;

//用户网站
//if ( \'user_url\' == $column_name )
//return \'user_url.\'\" target=\"_blank\">\'.$user->user_url.\'\';

//注册时间
if(\'reg_time\' == $column_name ){
return get_date_from_gmt( $user->user_registered );
}

//注册IP
if (\'signup_ip\' == $column_name && $user->signup_ip ){
return get_user_meta( $user->ID, \'signup_ip\', true );
}

//最后登录时间
if (\'last_login\' == $column_name && $user->last_login ){
return get_user_meta( $user->ID, \'last_login\', true );
}

//最后登录IP
if (\'last_login_ip\' == $column_name && $user->last_login_ip ){
return get_user_meta( $user->ID, \'last_login_ip\', true );
}
return $value;
}

//默认按照注册时间排序
add_filter( \"manage_users_sortable_columns\", \'cmhello_users_sortable_columns\' );
function cmhello_users_sortable_columns($sortable_columns){
$sortable_columns[\'reg_time\'] = \'reg_time\';
return $sortable_columns;
}
add_action( \'pre_user_query\', \'cmhello_users_search_order\' );
function cmhello_users_search_order($obj){
if(!isset($_REQUEST[\'orderby\']) || $_REQUEST[\'orderby\']==\'reg_time\' ){
if( !in_array($_REQUEST[\'order\'],array(\'asc\',\'desc\')) ){
$_REQUEST[\'order\'] = \'desc\';
}
$obj->query_orderby = \"ORDER BY user_registered \".$_REQUEST[\'order\'].\"\";
}
}
//增加后台用户管理显示注册时间和IP信息-结束