构建主题，以便开始<body> 然后关闭</body> 在页脚中（与<html> 标记）：
头球。php
<html>
...header content
<body> <!--- body is started in the header, used on every page -->
索引。php，第页。php，单个。php，主页。php-etc
...content
页脚。php
...footer content
</body> <!-- body is closed in the footer, also used on every page -->
</html>
