ThinkPHP5增删改查

<?php
namespace app\index\controller;

use think\Controller;
use think\db; //必须引用

class Index extends Controller 
{
    public function index()
    {
        /*查询*/

        //db()助手函数
        $userName = db(‘user_list‘)->field(‘user_name‘)->select();

        //table方法必须指定完整的数据表名
        $userInfo22 = db::table(‘wts_user_list‘)
       ->where(array(‘user_id‘=>22))->find();

        //name方法
        $userId = db::name(‘user_list‘)->field(‘user_id‘)->select();

        //Query对象
        $query = new \think\db\Query();
        $userTitle = $query->name(‘user_list‘)->column(‘user_title‘);


        /*更新*/
        db::name(‘bulletin_list‘)->where(‘bulletin_id‘,67)
        ->update([‘bulletin_title‘=>‘新闻‘]);

        // 更新数据表中的数据
        db(‘user‘)->where(‘id‘,1)->update([‘name‘ => ‘thinkphp‘]);
        // 更新某个字段的值
        db(‘user‘)->where(‘id‘,1)->setField(‘name‘,‘thinkphp‘);
        // 自增 score 字段
        db(‘user‘)->where(‘id‘, 1)->setInc(‘score‘);
        // 自减 score 字段
        db(‘user‘)->where(‘id‘, 1)->setDec(‘score‘);



        /*删除*/

        // 根据主键删除
        Db::table(‘think_user‘)->delete(1);
        Db::table(‘think_user‘)->delete([1,2,3]);

        // 条件删除
        Db::table(‘think_user‘)->where(‘id‘,1)->delete();
        Db::table(‘think_user‘)->where(‘id‘,‘<‘,10)->delete();

        // 根据主键删除
        db(‘user‘)->delete(1);
        // 条件删除
        db(‘user‘)->where(‘id‘,1)->delete();



        /*添加*/
        $data = [‘foo‘ => ‘bar‘, ‘bar‘ => ‘foo‘];
        Db::table(‘think_user‘)->insert($data);

        $data = [
            [‘foo‘ => ‘bar‘, ‘bar‘ => ‘foo‘],
            [‘foo‘ => ‘bar1‘, ‘bar‘ => ‘foo1‘],
            [‘foo‘ => ‘bar2‘, ‘bar‘ => ‘foo2‘]
        ];
        Db::name(‘user‘)->insertAll($data);$data = [
        [‘foo‘ => ‘bar‘, ‘bar‘ => ‘foo‘],
        [‘foo‘ => ‘bar1‘, ‘bar‘ => ‘foo1‘],
        [‘foo‘ => ‘bar2‘, ‘bar‘ => ‘foo2‘]
        ];
        Db::name(‘user‘)->insertAll($data);

       
        return $this->fetch(‘index‘);
    }
}
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作者：羊崽 
来源：CSDN 
原文：https://blog.csdn.net/ynw1990/article/details/77646359