laravel set session

In Laravel, Session allows us to share data between multiple HTTP requests. Session is stored on the server side, and you can use Laravel's internal methods to read and write Session data. In this article, I will show you how to set up a Session using Laravel.

First of all, in Laravel's default configuration, Session uses the file driver. However, Laravel also supports other driver methods, such as database, redis, etc.

Next, we will use a practical example to demonstrate how to set up Session in Laravel. We will set up a Session variable to hold the user's name and email address.

First, we need to define a closure function in the route to handle the request, as shown below:

Route::get('/set-session', function () {
    session(['name' => 'John Doe', 'email' => 'johndoe@example.com']);
    return 'Session set successfully';
});

In the above code, we use the session function to set up Session.

When the user opens the above route, the Session variable will be set to 'name' => 'John Doe', 'email' => 'johndoe@example.com'.

Now, we can use the session function to get the value of the Session variable. As shown below:

Route::get('/get-session', function () {
    $name = session('name');
    $email = session('email');
    return "Name: $name<br>Email: $email";
});

In the above code, we use the session function to get the value of the Session variable and assign them to the variables $name and $email.

If the Session variable is not set, the session function will return null.

In addition, we can also use HTTP request middleware web to automatically enable Session. Just add the following code to the routing middleware:

Route::middleware(['web'])->group(function () {
   // 路由
});

In this way, we can set up and use Session in Laravel.

Summary:

In Laravel, we can use the session function to set and get the value of Session variables. We can also use HTTP request middleware web to automatically enable Session. By using Session, we can share data between multiple HTTP requests to achieve more flexible data interaction and sharing.

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