方法一：官方缓存类统计代码。优点：加载速度快；缺点：可能信息更新不及时。

把以下代码添加到当前使用的主题模板文件中，如side.php文件：

<?php $sta_cache = Cache::getInstance()->readCache('sta'); /*必须添加*/ ?>
<ul>
 <li>文章总数：<?php echo $sta_cache['lognum']; ?> 篇</li>
 <li>评论总数：<?php echo $sta_cache['comnum_all']; ?> 条</li>
 <li>闲言碎语：<?php echo $sta_cache['twnum']; ?>条</li> 
 <li>网站运行：<?php echo floor((time()-strtotime(20160423))/86400); ?> 天</li> 
</ul>

附：$sta_cache[‘参数’]中的参数可选如下：

lognum游客可见日志总数

draftnum草稿，也就是隐藏文件数量

comnum未隐藏的评论数量

comnum_all所有评论数量

hidecomnum被隐藏的评论数量

twnum微语数量

checknum未审核的文章数量

方法二：自编函数，通过SQL语句查询相关数据。缺点：加载速度较缓存类慢；优点：实时显示
把下面的代码添加到主题的module.php文件中：

<?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'];
	}
 
	//统计附件总数
	function count_att_all(){
		$db = MySql::getInstance();
		$data = $db->once_fetch_array("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "attachment");
		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;       
	};
?>
调用代码：

<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>附件总数：<?php echo count_att_all();?></li>
	<li>最后更新：<?php echo last_post_log();?></li>	
</ul>