在Laravel中获取身份验证用户ID [英] Getting Auth User ID in Laravel

问题描述

如果用户登录Laravel 5.1，我们可以访问用户ID

If a user logs in Laravel 5.1 we can access user id

Auth::user()->id

在我以前的应用程序(不是laravel)中，当用户登录时，我正在为userid注册会话.而且我正在检查$ _SESSION ['user_id']是否可用.

In my previous app (not laravel) when a user logs in I'm registering a session for userid. And I was checking $_SESSION['user_id'] is available or not.

我想问的是，当我呼叫Auth::user()->id时，它会为每个请求生成并进行sql查询吗?如果这样做，则不利于性能.

I want to ask that when i call Auth::user()->id is it generates and sql query for every request ? If it does it is not good for performance.

我应该注册一个新的会话

Should I register a new session like

Session::put('user_id', Auth::user()->id);

以提高性能.

还是Auth:user()-> id是最佳选择?

Or Auth:user()->id is best choice ?

推荐答案

您可以改用Auth::id().这从会话中获取.如果会话中不存在该查询，它将运行查询并从数据库中获取该查询.

You can use Auth::id() instead. This grabs it from the session. If one doesn't exist in the session, then it will run the query and grab it from the database.

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