laravel $ request-> input（）不起作用

I'm trying to retrieve a single input from laravel request

$request->input('username')

But it returns undefined in ajax response, I tried:

$request->only('username')

as well as:

$request->username`

but none of them work, exept for:

$request->all()

which returns the right data object:

Object {
    username: "username",
    password: "password",
    _token: "uKi2r3G1XPiOLhi13da3NC67ssjc1qmeiGWFtQNM"
}

So I need to access single values.

Try this

$request['username'];

Hope this will work.

use this one

Input::get('username');

or

Request::get('username');

You can retrieve your data like this make model and make its table

 $posts = Post::orderBy('created_at','desc')->get();

the above code will output the value according to date in descending order. this is the best way