手册写得比较简单,不足以应付咱们平常可能用到的查询:php
$oSpecialty = new Specialty(); //dd(Specialty::where('id', 3)->value('path'));//查询单个字段,返回的是string //dd(Specialty::where('id',3)->first(['id','pid','path']));//查询多个定义的字段 //dd(Specialty::where('pid',0)->get(['id','pid','path']));//查询多个字段组成的数据集 //dd(Specialty::where('pid',0)->lists('id'));//查询某个列的集合,返回结果key是0,1,2值为id的集合 dd(Specialty::where('pid',0)->skip(5)->take(10)->get());//查询限制条数的记录 //dd(DB::update('update users set name="neo2" where id=1200'));//原生态更新
另外的例子:数组
//$userModel = new User(); $info1=User::where('id', 1)->get(); $info2=User::find(1); $info3=User::whereid(1)->first(); $info4=User::where('id', 1)->first(); $info5 = User::where(['id'=>1,'email'=>'admin@163.com'])->first();//多个条件 $info6 = User::whereid(1)->first();//采用where+键名查询 $info7 = User::where(['id'=>1])->first(); $info8 = User::where(['id'=>1])->first()->toArray();//注意toArray对象为null会报错,所以通常不这样用 $info9 = UserBind::where(['fromId'=>1])->get()->toArray();//注意toArray对象为null会报错,所以通常不这样用
更多例子code
User::whereIn('id', $id)->delete();//须要注意$id为数组,不是用逗号连接的字符串 Teacher::whereIn('user_id',$id)->delete();;//删除老师表