# 1.整理文件头部
我们看到文件头部内容重复所以创建data_v3/v2/templates/title.php
~~~
<h1>标题</h1>
<p>这是引进的头部内容(require)</p>
~~~
# 2.修改data_v3/v2/index.php
~~~
...............
...............
<!DOCTYPE html>
<html>
<head>
<title>我的博客</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>
<body>
<?php require 'templates/title.php' ?>
<?php while ($row = $stmt->fetch(PDO::FETCH_ASSOC)): ?>
<h2>
<?php echo htmlspecialchars($row['title'], ENT_HTML5, 'UTF-8') ?>
</h2>
...............
...............
~~~
# 3.修改data_v3/v2/view-post.php
~~~
...............
...............
<!DOCTYPE html>
<html>
<head>
<title>
我的博客 |
<?php echo htmlspecialchars($row['title'], ENT_HTML5, 'UTF-8') ?>
</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
</head>
<body>
<?php require 'templates/title.php' ?>
<h2>
<?php echo htmlspecialchars($row['title'], ENT_HTML5, 'UTF-8') ?>
</h2>
...............
...............
~~~