开启debug调试模式(正式上线建议关闭)

config.php

// 应用调试模式

'app_debug' => true,

设置输出类型

index.php

namespace app\index\controller;

class Index

{

public function index()

{

$data = ['name' => 'steven', 'age' => 24];

return json(['code' => 0, 'msg' => '操作成功', 'data' => $data]);

}

}

或者config.js

// 默认输出类型, 可选html,json xml ...

'default_return_type' => 'json',

获取请求参数

引入使用: use think\Request;

namespace app\index\controller;

use think\Request;

class Index {

public function index() {

$res = Request::instance();

// 注意连接字符串用'.',为不是'+'

echo '请求方法: ' . $res->method() . '

---

';

echo '访问地址: ' . $res->ip() . '

---

';

echo '请求参数: ';

dump($res->param());

echo '请求参数(仅包含id): ';

dump($res->only(['id']));

echo '请求参数(排除id): ';

dump($res->except(['id']));

}

}

捕获.PNG

判断请求类型

if ($res->isGet()) echo '这是GET方法';

if ($res->isPost()) echo '这是POST方法';

验证参数数据

use think\Validate;

$rules = [

'name' => 'require',

'age' => 'number|between:0,120',

'email' => 'email'

];

$msg = [

'name.require' => '姓名不能为空',

'age.number' => '年龄必须为数字类型',

'age.between' => '年龄范围1-120',

'email' => '邮箱格式不正确'

];

// 注意post后有个点

$data = input('post.');

$validate = new Validate($rules, $msg);

$res = $validate->check($data);

if(!$res){

echo $validate->getError();

}

链接MySQL数据库

database.php

// +----------------------------------------------------------------------

// | ThinkPHP [ WE CAN DO IT JUST THINK ]

// +----------------------------------------------------------------------

// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.

// +----------------------------------------------------------------------

// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )

// +----------------------------------------------------------------------

// | Author: liu21st

// +----------------------------------------------------------------------

return [

// 数据库类型

'type' => 'mysql',

// 服务器地址

'hostname' => '127.0.0.1',

// 数据库名

'database' => 'test',

// 用户名

'username' => 'root',

// 密码

'password' => '***',

... ...

index.php

use think\Db;

$res = Db::query('select * from user');

return $res;