laravel 框架之增删改查

需要引用文件

namespace App\Http\Controllers\Yicontroller;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

//因为需要引用DB方法   所以需要引用DB文件
use Illuminate\Support\Facades\DB;

控制器代码之增

 public function insert(){
       $list = DB::insert("insert into user value(null,'{$_POST['name']}',{$_POST['age']})");
       if($list){
           echo '添加成功';
       }

  

控制器代码之删

   public function shan(){
        $id = $_GET['id'];
        $list = DB::delete("delete from user where id=$id");
        if($list){
            echo "删除成功";
        }

控制器代码之改

public function gai(){
        $list = DB::update("update user set name='{$_POST['name']}' where id = {$_POST['id']}");
        if($list){
            echo '修改成功';
        }

控制器代码之查

 public function cha1(){
        $id = $_GET['id'];
        $list = DB::table('user')->where('id','=',$id)->first();
       // var_dump($list);die;
        return view('Yi1',['list'=>$list]);
    }