如何判断用户是否已登录Laravel

默认使用

使用check()功能验证用户是否已登录.

if (auth()->check()) {
  // User is logged in
  $user = auth()->user();
} else {
  // User is not logged in
}

在Blade中，指令还可用于简化这些功能的调用.

@auth
  // The data only available for auth user
@endauth

// and

@guest
  // Show content if unauthenticated
@endguest

我们可以显式指定只有登录用户才能访问路由.

Route::get('houses/{displayType}', [HousesController::class, 'show'])
  ->middleware('auth'); // use middleware() function to add extra middleware to route

// or can use with group() function to can add extra middleware to more route

Route::middleware('auth')->group(function () {
  Route::get('houses/{displayType}', [HousesController::class, 'show']);
})

使用另一个Auth Guard的额外配置

Laravel默认应用web个基于会话的身份验证.如果您想偏离这一点，您需要通过设置与Laravel进行正确沟通.如果您想使用基于令牌的API身份验证进行默认登录，则需要根据文档在config/auth.php中适当修改defaults.guard值.

return [
  'defaults' => [
    'guard' => 'api', // here
  ],
  'guards' => [
    // default guard
    'web' => [
      'driver' => 'session',
      'provider' => 'users',
    ],

    // can use this
    'api' => [
       'driver' => 'token',
       'provider' => 'users',
       'hash' => true,
    ],
  ],
];

如果您不想修改此值，则可以 Select 使用guard()函数在每个请求中重写此值.

if (auth()->guard('api')->check()) {
  // User is logged in
  $user = auth()->guard('api')->user();
} else {
  // User is not logged in
}