php框架laraavel——日期取值范围与本地缓存

一、日期插件：

carbon

        $startYesterday = Carbon::yesterday()->startOfDay()->toDateTimeString();
        $endYesterday = Carbon::yesterday()->endOfDay()->toDateTimeString();
        $startDay = Carbon::now()->startOfDay()->toDateTimeString();
        $endDay = Carbon::now()->endOfDay()->toDateTimeString();
        $startDay = Carbon::now()->startOfDay()->toDateTimeString();
        $endDay = Carbon::now()->endOfDay()->toDateTimeString();
        $startWeek = Carbon::now()->startOfWeek()->toDateTimeString();
        $endWeek = Carbon::now()->endOfWeek()->toDateTimeString();

二、本地缓存：

    $key = “uuid-1";
    if(Cache::has($key)){
        return Cache::get($key);
    }else{
        $info = [];
        $info['data'] = $this->getCanvasInstanceStatusMatch($user);
        Cache::put($key,$info,30);
        return $info;
    }

三、分页方法：

//1.自定义分页：    search
static::whereBetween('create_time', [$startDay, $endDay])
    ->where('run_status', $status)
    ->search(["offset" => $pageNum * $pageSize,"limit" => $pageSize])
    ->orderBy("create_time",'desc')
    ->get();


//2.sql分页方法：返回第一页，每页5条
paginate($perPage = null, $columns = ['*'], $pageName = '', $page = null)

selete * from student limit 0,5 ;

->select(DB::raw(selete * from student limit 0,5)

//3.实例：返回某些字段+过滤状态+时间排序+分页拉取

  $offset = $pageNum * $pageSize;// 0*5；1*10

$arr = static::select("src_canvas_config_id", "create_time", "end_time", "instance_time", "run_status")
               ->where('run_status', $status)
　　　　　　　　　->orderBy('instance_time', 'desc')
　　　　　　　　  ->offset($offset)
　　　　　　　　　->limit($pageSize)
　　　　　　　　　->get();

-end-