Smarty include有什么用
Smarty include怎么用？
{include}用于载入其他模板到当前模板中。 在包含模板中可用的变量，载入后在当前模板仍然可用。
{include}必须设置file 属性，设置载入的文件资源路径。
设置了可选的assign属性，将{include}模板的内容赋值到变量，而并非输出。 与{assign}操作相似。
包含模板时，可以像使用属性一样设置传递的变量。 这样传递的变量，作用范围仅限于包含的模板内。 属性传递的变量将覆盖原包含模板的同名变量。
你可以在当前模板内使用包含模板的全部变量。 但是如果包含模板内有修改或者新建变量，那么这些变量只有包含模板的作用范围，而不可以是当前{include}模板中使用。 这种默认的设置，可以通过在包含模板时设置{include}的作用范围属性，或者 在修改或新增变量时通过{assign}的作用范围属性来设定。 后者在需要包含模板返回值时比较有用。
当文件不在$template_dir目录中时， 使用资源的语法来{include}包含文件。
使用例子：
<html>
<head>
<title>{$title}</title>
</head>
<body>
{include file='page_header.tpl'}
{* body of template goes here, the $tpl_name variable
is replaced with a value eg 'contact.tpl'
*}
{include file="$tpl_name.tpl"}
{* using shortform file attribute *}
{include 'page_footer.tpl'}
</body>
</html>include使用：
在php文件中可以这么写：
$header=$path.'header.dwt'; $smarty->assign('header',$header);
在模板文件中则这样写：
{include file=$header}更多相关知识，请访问PHP中文网！
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