1. Introduction

ThinkPHP is an open source PHP development framework dedicated to helping developers build efficient, stable, secure and easily scalable WEB applications. ThinkPHP framework version upgrades and new functions are inevitable. Below I will introduce how to use TP5.0 to implement the addition, deletion, and modification functions. I hope it will be helpful to everyone.

2. Steps to implement addition, deletion, query and modification

1. Prepare sample database and table

First, you need to prepare a sample database and table. The following is a Example table:

CREATE TABLE think_user (
id int(11) NOT NULL AUTO_INCREMENT COMMENT 'userid',
name varchar(255) DEFAULT NULL COMMENT 'User Nickname',
email varchar(255) DEFAULT NULL COMMENT 'User Email',
status tinyint(4) DEFAULT '1' COMMENT 'User status',
create_time datetime DEFAULT NULL COMMENT 'Creation time',
update_time datetime DEFAULT NULL COMMENT 'Update time',
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='User information table';

2. Create user model and controller

First you need to create the user model and controller by generating commands:

php think make:model User
php think make:controller User

Please refer to the command documentation: https://www.kancloud.cn/manual/thinkphp5_1/353947

3. Implementing the user list

In the user controller, we need to implement the display of the user list. The implementation code is as follows:

public function index()
{

?$users?=?UserModel::all();
?$this->assign('users',?$users);
?return?$this->fetch();

}

Among them, UserModel is the one created in step 2 for operating the user table. Model, $users represents all user information obtained from the user table, $this->assign() is used to pass variables to the template, and finally the template is rendered through the $this->fetch() method.

4. Implementing user addition

The implementation of user addition is relatively simple, as shown in the following reference code:

public function add()
{

?if?(Request::instance()->isPost())?{
?????$user?=?new?UserModel;
?????$user->name?=?input('name');
?????$user->email?=?input('email');
?????if?($user->save())?{
?????????return?$this->success('用戶添加成功！',?url('index'));
?????}?else?{
?????????return?$this->error('用戶添加失??！');
?????}
?}
?return?$this->fetch();

}

5. Implementing user editing

The implementation of user editing requires more attention. The specific implementation code is as follows:

public function edit($id)
{

?$user?=?UserModel::get($id);
?if?(Request::instance()->isPost())?{
?????$user->name?=?input('name');
?????$user->email?=?input('email');
?????if?($user->save())?{
?????????return?$this->success('用戶更新成功！',?url('index'));
?????}?else?{
?????????return?$this->error('用戶更新失??！');
?????}
?}
?$this->assign('user',?$user);
?return?$this->fetch();

}

Among them, $id represents the edited user ID, and UserModel::get($id) is used to obtain the corresponding user Information, $this->assign() is used to pass values.

6. Implementing user deletion

User deletion requires careful operation. The following is a basic deletion implementation:

public function delete($id)
{

?$user?=?UserModel::get($id);
?if?($user)?{
?????$user->delete();
?????return?$this->success('用戶刪除成功！',?url('index'));
?}?else?{
?????return?$this->error('用戶不存在！');
?}

}

7. Code Test

The above code has implemented the basic functions of user management. You can test the code by accessing the following URL:

Visit /user/index to view the user list
Visit /user/add to add a new user
Visit /user/edit/id to edit the user with the specified ID
Visit /user/ delete/id deletes the user with the specified ID

3. Summary

The function of adding, deleting, checking and modifying is implemented in TP5.0, which can speed up the development efficiency of developers. Through the above implementation steps, developers can help realize simple addition, deletion, check and modification functions. At the same time, you can also refer to the TP5.0 official documentation to have a deeper understanding of the TP5.0 framework.

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