在emlog中想更能直观的展现博客得信息内容，由于官方没有提供特定的模块，因此我们需要自己添加一下查询代码。

以下是整理得emlog博客网站，调用的统计信息代码。具体可以通过两种方法来实现，各有优缺点，根据具体环境，酌情使用。

调用方法

1. 添加到当前使用的主题模板文件中，module.php输出部分，或侧边栏输出部分
官方缓存类统计代码。优点：加载速度快；缺点：信息更新不如直接查询准确

    <?php $sta_cache = Cache::getInstance()->readCache('sta'); /*必须添加*/ ?>
    <ul>
        <li>文章数：<?php echo $sta_cache['lognum']; ?> 篇</li>
        <li>评论数：<?php echo $sta_cache['comnum_all']; ?> 条</li>
        <li>未审核评论数：<?php echo $sta_cache['comnum']; ?> 条</li>
        <li>隐藏评论数：<?php echo $sta_cache['hidecomnum']; ?> 条</li>
        <li>草稿数：<?php echo $sta_cache['draftnum']; ?> 条</li>
        <li>未审核文章数：<?php echo $sta_cache['checknum']; ?> 条</li>
        <li>微语数：<?php echo $sta_cache['twnum']; ?>条</li> /*微语数在emlog pro版中更换为笔记，并且官方没在提供此类缓存*/
        <li>网站运行：<?php echo floor((time()-strtotime(20160423))/86400); ?> 天</li>  
    </ul>

2.

添加到当前使用的主题模板文件中
自查函数，通过SQL语句查询相关数据。缺点：此类查询过多导致加载速度缓慢；优点：实时显示

查询函数部分

    <?php
        //统计文章总数
        function count_log_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE type = 'blog'");
            return $data['total'];
        }
        //置顶文章数
        function count_log_top(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE  top = 'y' or sortop = 'y' AND type = 'blog'");
            return $data['total'];
        }
        //隐藏文章数
        function count_log_hide(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE hide = 'y' AND type = 'blog'");
            return $data['total'];
        }
        //未审核文章数
        function count_log_check(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE checked = 'n' AND type = 'blog'");
            return $data['total'];
        }
        //加密文章数
        function count_log_pass(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE  password !='' AND type = 'blog'");
            return $data['total'];
        }
        //统计页面总数
        function count_page_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "blog WHERE type = 'page'");
            return $data['total'];
        }
        //统计评论总数
        function count_com_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "comment");
            return $data['total'];
        }
        //统计友链总数
        function count_link_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "link");
            return $data['total'];
        }
        //统计微语评论总数
        function count_treply_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "reply");
            return $data['total'];
        }
        //统计分类总数
        function count_sort_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "sort");
            return $data['total'];
        }
        //统计子分类数
        function count_sort_mod(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "sort WHERE pid != 0");
            return $data['total'];
        }
        //统计标签总数
        function count_tag_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "tag");
            return $data['total'];
        }
        //统计微语总数
        function count_tw_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "twitter");
            return $data['total'];
        }
        //统计用户总数
        function count_user_all(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "user");
            return $data['total'];
        }
        //统计管理员总数
        function count_user_admin(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "user WHERE role = 'admin'");
            return $data['total'];
        }
        //统计作者总数
        function count_user_writer(){
            $db = MySql::getInstance();
            $data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "user WHERE role = 'writer'");
            return $data['total'];
        }
        //最后发表文章时间 
        function last_post_log(){
            $db = MySql::getInstance();
            $sql = "SELECT * FROM " . DB_PREFIX . "blog WHERE type='blog' ORDER BY date DESC LIMIT 0,1";
            $res = $db->query($sql);
            $row = $db->fetch_array($res);
            $date = date('Y-n-j H:i',$row['date']);
            return $date;       
        };
    ?>

调用显示部分

    <ul>
        <li>文章总数：<?php echo count_log_all();?></li>
        <li>置顶文章：<?php echo count_log_top();?></li>
        <li>隐藏文章：<?php echo count_log_hide();?></li>
        <li>待审文章：<?php echo count_log_check();?></li>
        <li>加密文章：<?php echo count_log_pass();?></li>
        <li>页面总数：<?php echo count_page_all();?></li>
        <li>评论总数：<?php echo count_com_all();?></li>
        <li>友链总数：<?php echo count_link_all();?></li>
        <li>微语评论：<?php echo count_treply_all();?></li>
        <li>分类总数：<?php echo count_sort_all();?></li>
        <li>子分类数：<?php echo count_sort_mod();?></li>
        <li>标签总数：<?php echo count_tag_all();?></li>
        <li>微语总数：<?php echo count_tw_all();?></li>
        <li>用户总数：<?php echo count_user_all();?></li>
        <li>管理员数：<?php echo count_user_admin();?></li>
        <li>作者总数：<?php echo count_user_writer();?></li>
        <li>最后更新：<?php echo last_post_log();?></li>   
    </ul>