<?php
namespace app\index\controller;
use think\Controller;
use think\facade\view;
class Index extends Controller
{
    public function index()
    {
        return '<style type="text/css">*{ padding: 0; margin: 0; } div{ padding: 4px 48px;} a{color:#2E5CD5;cursor: pointer;text-decoration: none} a:hover{text-decoration:underline; } body{ background: #fff; font-family: "Century Gothic","Microsoft yahei"; color: #333;font-size:18px;} h1{ font-size: 100px; font-weight: normal; margin-bottom: 12px; } p{ line-height: 1.6em; font-size: 42px }</style><div style="padding: 24px 48px;"> <h1>:) </h1><p> ThinkPHP V5.1<br/><span style="font-size:30px">12载初心不改（2006-2018） - 你值得信赖的PHP框架</span></p></div><script type="text/javascript" src="https://tajs.qq.com/stats?sId=64890268" charset="UTF-8"></script><script type="text/javascript" src="https://e.topthink.com/Public/static/client.js"></script><think id="eab4b9f840753f8e7"></think>';
    }

    public function hello($name = 'ThinkPHP5')
    {
        return 'hello,' . $name;
    }

    // 模板赋值
    public function demo1()
    {
        $name='world';
        $this->view->assign('name',$name);
        return $this->view->fetch('demo1');
    }

    //模板过滤
    public function demo2()
    {
        $this->view->assign('name','word');
        $filter=function($content){
            return str_replace('word','',$content);
        };

        return $this->filter($filter)->fetch();
    }

    //模板布局
    public function demo3()
    {
        $this->view->engine->layout(true);
        return $this->view->fetch();
    }

    // 模板继承
    public function demo4()
    {
        return $this->view->fetch();
    }
}

<h1>hello,{$name}</h1>

<span>名字：{$name}</span>

<h2>模板布局动态配置</h2>

{extend name="base" /}
{block name="main"}
<h3>对base中的main重写</h3>
{/block}

<style type="text/css">
    .footer{
        width:1000px;
        height:60px;
        background:wheat;
    }
</style>

<div class="header">
    footer
</div>

<style type="text/css">
    .header{
        width:1000px;
        height:60px;
        background:wheat;
    }
</style>

<div class="header">
    header
</div>

{block name="header"}
{include file="public/header" /}
{/block}

{block name="main"}main{/block}<br>

{block name="site"}base内容{/block}<br>

{block name="footer"}
{include file="public/footer" /}
{/block}

{include file="public/header" /}
{__CONTENT__}
{include file="public/footer" /}