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https://blog.csdn.net/yaoguoxing/article/details/107294307?spm=1001.2014.3001.5502


https://blog.csdn.net/yaoguoxing/article/details/107294642
Codeigniter 4基础教程（11）-- 注册登陆案例（1）
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小试身手，做个测试：
app/controllers/Home.php

<?php namespace App\Controllers;

class Home extends BaseController
{
	public function index()
	{
		return view('welcome_message');
	}
	public function method(){
		echo '没错，就是我';
	}
}

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<?php namespace App\Controllers;

class Home extends BaseController
{
	public function index()
	{
		return view('welcome_message');
	}
	public function method(){

	}
	public function setsession(){
		$mysession = session();
		var_dump($mysession);
		echo '==============';
		$myarray = [
			'name'=>'yyys',
			'email'=>'yyyfadfs',
			'add'=>'yyysfadga'
		];
		$mysession->set('key',$myarray);
	}
	public function getsession(){
		$mysession = session();
		var_dump($mysession->get('key'));
	}
	public function destroysession(){
		$mysession = session();
		$mysession->destroy();
	}
}

以此输入http://localhost/ci4signup/home/setsession， 和
http://localhost/ci4signup/home/getsession， http://localhost/ci4signup/home/destroysession， http://localhost/ci4signup/home/getsession查看结果
————————————————

<?php namespace App\Controllers;

class User extends BaseController{

    public function index(){
        echo 'I am fine';
    }

    public function register(){
        // echo '注册开始';
        helper('form');
        return view('signup');
    }

    public function newuser(){
        $myvalues = $this->validate([
            'name'=>'required',
            'email'=>'required',
            'password'=>'required',
        ]);
        if(!$myvalues){//没有通过条件检验
            return $this->register();
        }else{//通过条件检验后，取值
            $myrequest = \Config\Services::request();
            echo $myrequest->getVar('name');
            echo $myrequest->getVar('email');
            echo $myrequest->getVar('password');
        }

    }
}
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CREATE TABLE `users` (
 `u_id` int(11) NOT NULL AUTO_INCREMENT,
 `u_name` varchar(255) DEFAULT NULL,
 `u_email` varchar(255) DEFAULT NULL,
 `u_password` varchar(255) DEFAULT NULL,
 `u_link` varchar(255) DEFAULT NULL,
 `u_date` datetime NOT NULL,
 `u_updated` datetime NOT NULL,
 PRIMARY KEY (`u_id`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8



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