【Typecho】的Joe主题新增文章阅读时长统计

修改
functions.php
文件，底部增加，文件路径：
/usr/themes/Joe
注意:代码一定要在</>之间,否则会报错

 // 文章阅读时长设置
$onlineTime = new Typecho_Widget_Helper_Form_Element_Select(
 'onlineTime',
 array(
     'off' => '关闭（默认）',
     'on' => '开启',
 ),
 'on',
 '是否启用文章阅读时长统计',
 '介绍：开启后，文章底部展示文章字数，预计阅读时长和已阅读时长'
);
$onlineTime->setAttribute('class', 'joe_content joe_post'); //如果设置无法展示，请将joe_custom替换为joe_other
$form->addInput($onlineTime->multiMode());

{/tabs-pane}
{tabs-pane label="第二步"}
2.修改
article.php
文件，文件路径：
usr/themes/Joe/module/single

<div class="contain" style="margin-bottom: 10px; <?php if(Helper::options()->onlineTime !== 'on') echo 'display:none;'  ?>">
 <blockquote id="onlineTime">本文共 <?php art_count($this->cid); ?> 个字数,平均阅读时长 ≈ <?php echo art_time($this->cid); ?>分钟</blockquote>
</div>

{/tabs-pane}
{tabs-pane label="第三步"}
3.修改
article.php
文件，文件路径：
usr/themes/Joe/module/single
在最底部添加以下代码:

<?php 
//文章阅读时间统计
function art_time ($cid){
 $db=Typecho_Db::get ();
 $rs=$db->fetchRow ($db->select ('table.contents.text')->from ('table.contents')->where ('table.contents.cid=?',$cid)->order ('table.contents.cid',Typecho_Db::SORT_ASC)->limit (1));
 $text = preg_replace("/[^\x{4e00}-\x{9fa5}]/u", "", $rs['text']);
 $text_word = mb_strlen($text,'utf-8');
 echo ceil($text_word / 400);
}

//文章字数统计
function  art_count ($cid){
 $db=Typecho_Db::get ();
 $rs=$db->fetchRow ($db->select ('table.contents.text')->from ('table.contents')->where ('table.contents.cid=?',$cid)->order ('table.contents.cid',Typecho_Db::SORT_ASC)->limit (1));
 $text = preg_replace("/[^\x{4e00}-\x{9fa5}]/u", "", $rs['text']);
 echo mb_strlen($text,'UTF-8');
}
?>
<script language="javascript">
 var second=0;
 var minute=0;
 var hour=0;
 window.setTimeout("interval();",1000);
 function interval()
 {
     second++;
     if(second==60)
     {
         second=0;minute+=1;
     }
     if(minute==60)
     {
         minute=0;hour+=1;
     }
     var onlineTime = "您已阅读：" + hour + "时" + minute + "分" + second + "秒。";
     var joe_message_content = "本文共 " + <?php art_count($this->cid); ?> + "个字数，平均阅读时长 ≈ " + <?php echo art_time($this->cid); ?> + "分钟，";
     $('#onlineTime').text(joe_message_content + onlineTime);
     window.setTimeout("interval();", 1000);
 }
</script>

{/tabs-pane}