Generate a Laravel 5.x hash/token

GenerateToken.php

<?php

use Illuminate\Support\Facades\Password;

# Generate a token in the same style as laravels password reset tokens.
# Will generate something like: 785f616c4978a87ad65a899ed4133b358a4697649c55b0965a7ebb7486bd9801
/** @var DatabaseTokenRepository */
$repo = Password::getRepository();
$token = $repo->createNewToken($user);

# Laravels underlying token generation technique for the above is:
# hash_hmac('sha256', Str::random(40), <your-app-key>)

You can also obtain it for a user using Password::broker()->createToken($user);

You can also obtain it for a user using Password::broker()->createToken($user);

sorry if my questions seems weird but after creating this token how could i check which user dose it belong to ?!