动态调用laravel模型[重复]

This question already has an answer here:

Call Laravel model by string 5 answers

I am trying to call a Model dynamically, but I am getting ..

Class 'xxx' not found

Here's my code:

use App\xxx;
.
.
.

$model = ucfirst(explode('_', $title)[0]);
$model::where('name', 'john')->get()->toArray();

dd($model) gives:

"xxx"

</div>

If $xxx is not full class name, do this:

$model = 'App\\' . $model;
$model::where('name', 'john')->get()->toArray();