关于Laravel的缓存方法

if (!$article = Cache::get('article_1')) {
    $article = Article::find(1);
    Cache::forever('article_1',$article);
}

$article = Article::rememberForever('article_1')->where('id','=',1);

//注册缓存存取宏
Cache::macro('want',function($key,$minutes=0,$callback){
    if (!$data = Cache::get($key)) {
        $data = call_user_func($callback);
        if ($minutes == 0) {
            Cache::forever($key,$data);
        } else {
            Cache::put($key,$data,$minutes);
        }
    }
    return $data;
});

$id = Input::get('id');
$article = Cache::want('article_'.$id,0,function() use ($id){
    return Article::with('tags')->findOrFail($id,['id','cid','title','content_html as content','created_at','updated_at']);
});