侧边栏添加信息统计小工具

有两种方式：

（方式一）在主题目录下创建widget-websitestat.php文件，然后把下面的php代码添加进去。

代码：

<?php
// WordPress统计信息小工具
// 名称: 网站信息统计

// 定义小工具的类 EfanWebsitestat
class EfanWebsitestat extends WP_Widget{

  function __construct(){
    // 定义小工具的构造函数
    $widget_ops = array('classname' => 'widget_Websitestat', 'description' => '显示网站的统计信息');
    parent::__construct(false, 'WIIUII 网站统计', $widget_ops);
  }
  
  function form($instance){
    // 表单函数,控制后台显示
    // $instance 为之前保存过的数据
    // 如果之前没有数据的话,设置默认量
    $instance = wp_parse_args(
      (array)$instance,
      array(
        'title' => '网站信息统计',
        'establish_time' => '2021-01-01'
      )
    );
    
    $title = htmlspecialchars($instance['title']);
    $establish_time = htmlspecialchars($instance['establish_time']);
    
    // 表格布局输出表单
    $output = '<table>';
    $output .= '<tr><td>标题</td><td>';
    $output .= '<input id="'.$this->get_field_id('title') .'" name="'.$this->get_field_name('title').'" type="text" value="'.$instance['title'].'" />';
    $output .= '</td></tr><tr><td>建站时间：</td><td>';   
    $output .= '<input id="'.$this->get_field_id('establish_time') .'" name="'.$this->get_field_name('establish_time').'" type="text" value="'.$instance['establish_time'].'" />';   
    $output .= '</td></tr></table>';  
    echo $output;   
  }
  
  function update($new_instance, $old_instance){
    // 更新数据的函数
    $instance = $old_instance;
    // 数据处理
    $instance['title'] = strip_tags(stripslashes($new_instance['title']));
    $instance['establish_time'] = strip_tags(stripslashes($new_instance['establish_time']));
    return $instance;
  }
  
  function widget($args, $instance){
    extract($args); //展开数组
    $title = apply_filters('widget_title',empty($instance['title']) ? ' ' : $instance['title']);
    $establish_time = empty($instance['establish_time']) ? '2021-01-01' : $instance['establish_time'];
    echo $before_widget;
    echo $before_title . $title . $after_title;
    echo '<div class="widgest-boys"><ul>';
    $this->efan_get_websitestat($establish_time);
    echo '</ul></div>';
    echo $after_widget;
  }
  
  function efan_get_websitestat($establish_time){
    // 相关数据的获取
    global $wpdb;
    $count_posts = wp_count_posts();
    $published_posts = $count_posts->publish;
    $comments_count = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments");
    $time = floor((time()-strtotime($establish_time))/86400);
    $count_tags = wp_count_terms('post_tag');
    $count_pages = wp_count_posts('page');
    $link = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->links WHERE link_visible = 'Y'"); 
    $users = $wpdb->get_var("SELECT COUNT(ID) FROM $wpdb->users");
    $last = $wpdb->get_results("SELECT MAX(post_modified) AS MAX_m FROM $wpdb->posts WHERE (post_type = 'post' OR post_type = 'page') AND (post_status = 'publish' OR post_status = 'private')");
    $last = date('Y-m-d', strtotime($last[0]->MAX_m));
    $total_views = $wpdb->get_var("SELECT SUM(meta_value+0) FROM $wpdb->postmeta WHERE meta_key = 'views'");  
    // 显示数据
    $output = '<div class="widgest-bg widgest-bg1"><div class="widgest-main"><div class="widgest-meat"><li>文章总数：';
    $output .= $published_posts;
    $output .= ' 篇</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg2"><div class="widgest-main"><div class="widgest-meat"><li>评论数目：';
    $output .= $comments_count;
    $output .= ' 条</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg3"><div class="widgest-main"><div class="widgest-meat"><li>标签总数：';
    $output .= $count_tags;
    $output .= ' 个</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg4"><div class="widgest-main"><div class="widgest-meat"><li>浏览次数：';
    $output .= $total_views;
    $output .= ' 次</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg5"><div class="widgest-main"><div class="widgest-meat"><li>友链总数：';
    $output .= $link;
    $output .= ' 个</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg6"><div class="widgest-main"><div class="widgest-meat"><li>用户总数：';
    $output .= $users;
    $output .= ' 个</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg7"><div class="widgest-main"><div class="widgest-meat"><li>运行天数：';
    $output .= $time;
    $output .= ' 天</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg8"><div class="widgest-main"><div class="widgest-meat"><li>建站时间：';
    $output .= $establish_time;
    $output .= '</li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg9"><div class="widgest-main"><div class="widgest-meat"><li>最后更新：';
    $output .= $last;
    $output .= '</li></div></div></div>';
    //   页面生成耗时+数据库查询  
    $output .= '<div class="widgest-bg widgest-bg10"><div class="widgest-main"><div class="widgest-meat"><li>数据查询：';
    $output .= get_num_queries();
    $output .= ' 次 </li></div></div></div>';
    $output .= '<div class="widgest-bg widgest-bg11"><div class="widgest-main"><div class="widgest-meat"><li>生成耗时：';
    $output .= timer_stop(0,5);
    $output .= '秒</li></div></div></div>';
    
    echo $output;
  }
}

function EfanWebsitestat(){
  // 注册小工具
  register_widget('EfanWebsitestat');
}

add_action('widgets_init','EfanWebsitestat');

?>

（方式二）本站已经创建好文件，免去了你自己创建文件，在文章末尾处“资源下载”下载文件，然后上传到主题目录下即可。

2、在主题目录下functions.php文件，添加下面的函数代码即可。

//添加站点统计小工具

//添加站点统计小工具
include("widget-websitestat.php");

3、在网站后台—》主题设置—》自定义代码—》自定义CSS样式，添加下面的CSS代码，主题没有自定义CSS样式的，在主题目录下style.css添加即可。

/*统计小模块*/
.widget_Websitestat h3{font-weight:700;}.widgest-boys{overflow:hidden;}.widgest-boys .widgest-bg{margin: 4px; background-size: cover; background-repeat: no-repeat; background-position: center center; cursor: pointer; border-radius: 8px;}.widgest-boys .widgest-main{align-items: center; place-content: flex-start space-around; display: flex;}.widgest-boys .widgest-meat{display: block; margin-block-start: 1em; margin-block-end: 1em; margin-inline-start: 0px; margin-inline-end: 0px; color: rgb(255, 255, 255); font-weight: 700 !important; line-height: 1.5 !important;}.widgest-bg:not(article){transition: all 0.3s;}.widgest-bg:not(article):hover{transform: translateX(-10px);}
/*图片路径设置*/
.widgest-bg1{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_1.jpeg);}
.widgest-bg2{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_2.jpeg);}
.widgest-bg3{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_3.jpeg);}
.widgest-bg4{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_4.jpeg);}
.widgest-bg5{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_5.jpeg);}
.widgest-bg6{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_6.jpeg);}
.widgest-bg7{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_7.jpeg);}
.widgest-bg8{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_8.jpeg);}
.widgest-bg9{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_9.jpeg);}
.widgest-bg10{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_10.jpeg);}
.widgest-bg11{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_11.jpeg);}

.widgest-bg11{background-image: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),url(https://www.cunshao.com/666666/meihua/img/202265214415536a8ec8a13632762d0e984c674694de6f2533dc6e9_11.jpeg);}

说明（非常重要）：图片我是通过一张图片剪切成11张图片（有11个信息统计），然后通过CSS添加进去的。你可以自己剪切11张图片，然后按顺序添加进去，css中”widgest-bg1-widgest-bg11″都是按顺序好的，在url(图片链接路径)里面加，不懂的找留言或者联系我。

我用的剪切工具是在百度乱找的，呐！http://www.zuohaotu.com/cut-image.aspx就是这个。

剪切教程：