An article explaining the definition and use of thinkphp controller in detail

The following is the thinkphp framework tutorial column to introduce the definition and use of the thinkphp controller. I hope it will be helpful to friends in need!

thinkphp controller

Controller definition

The class name is the same as the file name,

Rendering output

Rendering output uses return output

<?php namespace app\admin\controller;
use app\admin\model\User;

class Index
{

    public function Index(){
        $data = array(
            &#39;ming&#39; => 'ming',
            'ming' => 'xiao'
        );
        return json($data);
    }

}

At this time, the page renders a json file

The code cannot be interrupted in the controller. .
Use halt output

<?php namespace app\admin\controller;
use app\admin\model\User;

class Index
{

    public function Index(){
        $data = array(
            &#39;ming&#39; => 'ming',
            'ming' => 'xiao'
        );
        halt("输出测试");
        return json($data);
    }

}

Use halt output

Multi-level controller

Multi-level controller Multi-level controller directly Use

<?php namespace app\admin\controller\Index;


class Blog
{
    public function index(){

    }

    public function read($id){
        var_dump(url(&#39;index/blog/read&#39;, [&#39;id&#39; => 5, 'name' => 'ming']));
        return $id;
    }
}

in the namespace to define the sub-controller Blog under the Index namespace
Directory structure

Define routing rules

<?php use think\facade\Route;

Route::rule(&#39;blog/:id&#39;, &#39;index.blog/read&#39;);
Route::rule(&#39;/&#39;, &#39;Index/index&#39;);

Access the blog directory under the index route

Basic Controller

The controller will have a basic controller
The system will provide a

app\BaseController

Basic Controller

The directory files are as follows

All controls have a basic control class
appBaseController

Because it is a multi-application mode. . Move the basic class to the directory

Change the namespace

namespace app\index\controller;

use think\App;
use think\exception\ValidateException;
use think\Validate;

<?php namespace app\index\controller;

use think\Request;

class Index extends BaseController
{
    /**
     * 显示资源列表
     *
     * @return \think\Response
     */
    public function index()
    {
        $action = $this->request->action();
        $path = $this->app->getBasePath();
        var_dump($action);
        var_dump($path);
    }

    /**
     * 显示创建资源表单页.
     *
     * @return \think\Response
     */
    public function create()
    {
        //
    }

    /**
     * 保存新建的资源
     *
     * @param  \think\Request  $request
     * @return \think\Response
     */
    public function save(Request $request)
    {
        //
    }

    /**
     * 显示指定的资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function read($id)
    {
        //
    }

    /**
     * 显示编辑资源表单页.
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * 保存更新的资源
     *
     * @param  \think\Request  $request
     * @param  int  $id
     * @return \think\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * 删除指定资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function delete($id)
    {
        //
    }
}

Output content

string(5) "index" string(43) "/home/ming/PhpstormProjects/untitled12/app/"

Controller verification

<?php namespace app\index\controller;

use think\exception\ValidateException;
use think\Request;

class Index extends BaseController
{
    /**
     * 显示资源列表
     *
     * @return \think\Response
     */
    public function index()
    {
        try {
            $this->validate( [
                'name'  => 'thinkphp',
                'email' => 'thinkphp@qq.com',
            ],  'app\index\validate\User');
        } catch (ValidateException $e) {
            // 验证失败 输出错误信息
            dump($e->getError());
        }
    }

    /**
     * 显示创建资源表单页.
     *
     * @return \think\Response
     */
    public function create()
    {
        //
    }

    /**
     * 保存新建的资源
     *
     * @param  \think\Request  $request
     * @return \think\Response
     */
    public function save(Request $request)
    {
        //
    }

    /**
     * 显示指定的资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function read($id)
    {
        //
    }

    /**
     * 显示编辑资源表单页.
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * 保存更新的资源
     *
     * @param  \think\Request  $request
     * @param  int  $id
     * @return \think\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * 删除指定资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function delete($id)
    {
        //
    }
}

This controller Verification

Empty Controller

The empty controller is the method called when the method cannot be found

    public function __call($name, $arguments)
    {
        // TODO: Implement __call() method.
        return 'error request';
    }

Resource Controller

Create restful control Device
Input

php think make:controller index@Blog

Generate resource controller
Generate api

<?php namespace app\index\controller;

use think\Request;

class Blog
{
    /**
     * 显示资源列表
     *
     * @return \think\Response
     */
    public function index()
    {
        //
    }

    /**
     * 保存新建的资源
     *
     * @param  \think\Request  $request
     * @return \think\Response
     */
    public function save(Request $request)
    {
        //
    }

    /**
     * 显示指定的资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function read($id)
    {
        //
    }

    /**
     * 保存更新的资源
     *
     * @param  \think\Request  $request
     * @param  int  $id
     * @return \think\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * 删除指定资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function delete($id)
    {
        //
    }
}

Register resource routing

Route::resource('blog', 'Blog');

Controller middleware

Write the controller

<?php namespace app\index\middleware;

class Hello
{
    public function handle($request, \Closure $next){
        $request->hello = 'ming';
        return $next($request);
    }
}

Use routing to register the controller

<?php use think\facade\Route;

Route::rule(&#39;ming&#39;, &#39;index/index&#39;)->middleware(
    [
        app\index\middleware\Hello::class
    ]
);

Visit http://localhost:8082/index/ming
If ming

appears, it means the middleware registration is successful .

Recommended: "The latest 10 thinkphp video tutorials"

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