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tp6的框架的搭建
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tp6的框架的搭建

一、搭建ThinkPHP项目

一)利用composer工具安装

二)测试能否访问

二、配置数据库

在database里面配置

一、增删查改

一)、查询

1. 单条数据查询

  1. $user = Db::table('oyk_user')->find();

2、where条件

  1. $user =Db::table('oyk_user')->where('nickname','小编6')->find();

3、查询多条select多条数据查询出来的值是对象。

  1. $user = Db::table('oyk_user')->where('uid','>','6')->select();

4、value 查询某个值

  1. $user = Db::table('oyk_user')->where('uid','=','6')->value('nickname');

二)、添加

1、添加功能,先整理数据,一般是从前端发送过来

  1. $data = [
  2. 'nickname' => '小编7',
  3. 'phone' => '18822226666'
  4. ];
  5. $add = Db::table('oyk_user')->insert($data);

三)、修改

1、修改 update

  1. $data = [
  2. 'nickname' => '小编9',
  3. 'phone' => 18822228888
  4. ];
  5. $update = Db::table('oyk_user')->where('uid',16)->update($data);

2、如果修改一个单独的值,操作数据表会麻烦。

  1. 自增 inc ,自减 dec 用在访问日志上
  2. $update = Db::table('oyk_user')->where('uid',16)->inc('log_num',10)->update();

四)、删除 delete

1. 删除和修改,必须增加条件

  1. $delete = Db::table('oyk_user')->where('uid',16)->delete();

2.软删除,数据删除了,还存在数据表中。 就是把字段的值改变,改变成1个大家公认是删除的值

  1. useSoftDelete
  2. $delete = Db::table('oyk_user')->where('uid',15)->useSoftDelete('status',99)->delete();
Correcting teacher:PHPzPHPz

Correction status:qualified

Teacher's comments:
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