在 WordPress 后臺(tái)，用戶(hù)是按照用戶(hù)名排序的，并且沒(méi)有顯示注冊(cè)時(shí)間，如果我們希望能夠在后臺(tái)看到用戶(hù)的注冊(cè)時(shí)間，并且按照注冊(cè)時(shí)間排序，可以通過(guò)下面的代碼實(shí)現(xiàn)： 

<?php 
/* 
Plugin Name: 按照用戶(hù)注冊(cè)時(shí)間排序 
Plugin URI: http://blog.wpjam.com/m/order-by-user-registered-time/ 
Description: 顯示用戶(hù)注冊(cè)時(shí)間，并按照用戶(hù)注冊(cè)時(shí)間排序。 
Version: 0.1 
Author: Denis 
Author URI: http://blog.wpjam.com/ 
*/ 
add_filter('manage_users_columns','wpjam_add_users_column_reg_time'); 
function wpjam_add_users_column_reg_time($column_headers){ 
$column_headers['reg_time'] = '注冊(cè)時(shí)間'; 
return $column_headers; 
} 
add_filter('manage_users_custom_column', 'wpjam_show_users_column_reg_time',11,3); 
function wpjam_show_users_column_reg_time($value, $column_name, $user_id){ 
if($column_name=='reg_time'){ 
$user = get_userdata($user_id); 
return get_date_from_gmt($user->user_registered); 
}else{ 
return $value; 
} 
} 
add_filter( "manage_users_sortable_columns", 'wpjam_users_sortable_columns' ); 
function ys_users_sortable_columns($sortable_columns){ 
$sortable_columns['reg_time'] = 'reg_time'; 
return $sortable_columns; 
} 
add_action( 'pre_user_query', 'wpjam_users_search_order' ); 
function wpjam_users_search_order($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'].""; 
} 
} 

將上面的保存為一個(gè)插件，上傳激活之后，就可以在用戶(hù)界面看到注冊(cè)時(shí)間，并且按照注冊(cè)時(shí)間排序了：