laravel框架操作数据库

      

<?php

namespace App\Http\Controllers;
use Illuminate\Support\Facades\DB;
class StudentController extends Controller
{
	
	public function test1()
	{
		//查询
		/*$result = DB::SELECT('SELECT * FROM WEB_USER WHERE USERID = 1');
		dd($result);*/
		//插入
		/*$bool = DB::insert('insert into web_user(name,age) values(?,?)',['sean',18]);
		print_r($bool);*/
		//更新
		/*$bool = DB::insert('update web_user set age = ? where userid = ?',[18,1]);
		print_r($bool);*/
		$bool = DB::delete('delete from web_user where userid = 112');
		var_dump($bool);
	}
}

注意：一定要添加  use Illuminate\Support\Facades\DB;

dd（）打印数组对象