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]);
}