Laravel, faker: 调用未定义的函数

Laravel, faker: Call to undefinded function

调用未定义函数sentence()

在laravel 5.8中从faker调用sentence()时。

我猜这是一个导入问题,但我无法弄清楚。

<?php

use Faker\Generator as Faker;

$factory->define(App\Activity::class, function (Faker $faker) {
    return [
        'when' => $faker->name,
        'activity' => $faker->sentence($nbWords = 5, $variableNbWords = true),
        'learned' => $faker->sentence($nbWords = 2, $variableNbWords = true),
        'role' => $faker->sentence($nbWords = 2, $variableNbWords = true),
        'created_at' => now(),
        'updated_at' => now(),
        'user_id' => rand(1, 10),
    ];
});

我用 $faker-sentence 代替了 $faker->sentence。