diff --git a/src/Illuminate/Broadcasting/InteractsWithBroadcasting.php b/src/Illuminate/Broadcasting/InteractsWithBroadcasting.php
index 48fcba6bf802..91a1cb7cd18e 100644
--- a/src/Illuminate/Broadcasting/InteractsWithBroadcasting.php
+++ b/src/Illuminate/Broadcasting/InteractsWithBroadcasting.php
@@ -4,6 +4,8 @@
 
 use Illuminate\Support\Arr;
 
+use function Illuminate\Support\enum_value;
+
 trait InteractsWithBroadcasting
 {
     /**
@@ -16,11 +18,13 @@ trait InteractsWithBroadcasting
     /**
      * Broadcast the event using a specific broadcaster.
      *
-     * @param  array|string|null  $connection
+     * @param  array|string|null|\UnitEnum  $connection
      * @return $this
      */
     public function broadcastVia($connection = null)
     {
+        $connection = enum_value($connection);
+
         $this->broadcastConnection = is_null($connection)
             ? [null]
             : Arr::wrap($connection);
diff --git a/src/Illuminate/Broadcasting/PendingBroadcast.php b/src/Illuminate/Broadcasting/PendingBroadcast.php
index 0d1298e07111..0c7b9b66e271 100644
--- a/src/Illuminate/Broadcasting/PendingBroadcast.php
+++ b/src/Illuminate/Broadcasting/PendingBroadcast.php
@@ -4,6 +4,8 @@
 
 use Illuminate\Contracts\Events\Dispatcher;
 
+use function Illuminate\Support\enum_value;
+
 class PendingBroadcast
 {
     /**
@@ -35,13 +37,13 @@ public function __construct(Dispatcher $events, $event)
     /**
      * Broadcast the event using a specific broadcaster.
      *
-     * @param  string|null  $connection
+     * @param  string|null|\UnitEnum  $connection
      * @return $this
      */
     public function via($connection = null)
     {
         if (method_exists($this->event, 'broadcastVia')) {
-            $this->event->broadcastVia($connection);
+            $this->event->broadcastVia(enum_value($connection));
         }
 
         return $this;
diff --git a/src/Illuminate/Console/Scheduling/Schedule.php b/src/Illuminate/Console/Scheduling/Schedule.php
index 17de97bad8cb..22548354e526 100644
--- a/src/Illuminate/Console/Scheduling/Schedule.php
+++ b/src/Illuminate/Console/Scheduling/Schedule.php
@@ -19,6 +19,8 @@
 use Illuminate\Support\Traits\Macroable;
 use RuntimeException;
 
+use function Illuminate\Support\enum_value;
+
 /**
  * @mixin \Illuminate\Console\Scheduling\PendingEventAttributes
  */
@@ -170,14 +172,17 @@ public function command($command, array $parameters = [])
      * Add a new job callback event to the schedule.
      *
      * @param  object|string  $job
-     * @param  string|null  $queue
-     * @param  string|null  $connection
+     * @param  string|null|\UnitEnum  $queue
+     * @param  string|null|\UnitEnum  $connection
      * @return \Illuminate\Console\Scheduling\CallbackEvent
      */
     public function job($job, $queue = null, $connection = null)
     {
         $jobName = $job;
 
+        $queue = enum_value($queue);
+        $connection = enum_value($connection);
+
         if (! is_string($job)) {
             $jobName = method_exists($job, 'displayName')
                 ? $job->displayName()
diff --git a/src/Illuminate/Contracts/Filesystem/Factory.php b/src/Illuminate/Contracts/Filesystem/Factory.php
index d0f9cd2bbfae..2f9e612ff629 100644
--- a/src/Illuminate/Contracts/Filesystem/Factory.php
+++ b/src/Illuminate/Contracts/Filesystem/Factory.php
@@ -7,7 +7,7 @@ interface Factory
     /**
      * Get a filesystem implementation.
      *
-     * @param  string|null  $name
+     * @param  \UnitEnum|string|null  $name
      * @return \Illuminate\Contracts\Filesystem\Filesystem
      */
     public function disk($name = null);
diff --git a/src/Illuminate/Contracts/Redis/Factory.php b/src/Illuminate/Contracts/Redis/Factory.php
index c2bfe81f9888..3562a8c3bab7 100644
--- a/src/Illuminate/Contracts/Redis/Factory.php
+++ b/src/Illuminate/Contracts/Redis/Factory.php
@@ -7,7 +7,7 @@ interface Factory
     /**
      * Get a Redis connection by name.
      *
-     * @param  string|null  $name
+     * @param  string|null|\UnitEnum  $name
      * @return \Illuminate\Redis\Connections\Connection
      */
     public function connection($name = null);
diff --git a/src/Illuminate/Database/Connection.php b/src/Illuminate/Database/Connection.php
index a883e3edb22e..fed6acc10e55 100755
--- a/src/Illuminate/Database/Connection.php
+++ b/src/Illuminate/Database/Connection.php
@@ -25,6 +25,8 @@
 use PDOStatement;
 use RuntimeException;
 
+use function Illuminate\Support\enum_value;
+
 class Connection implements ConnectionInterface
 {
     use DetectsConcurrencyErrors,
@@ -307,13 +309,13 @@ public function getSchemaBuilder()
     /**
      * Begin a fluent query against a database table.
      *
-     * @param  \Closure|\Illuminate\Database\Query\Builder|\Illuminate\Contracts\Database\Query\Expression|string  $table
+     * @param  \Closure|\Illuminate\Database\Query\Builder|\Illuminate\Contracts\Database\Query\Expression|\UnitEnum|string  $table
      * @param  string|null  $as
      * @return \Illuminate\Database\Query\Builder
      */
     public function table($table, $as = null)
     {
-        return $this->query()->from($table, $as);
+        return $this->query()->from(enum_value($table), $as);
     }
 
     /**
diff --git a/src/Illuminate/Database/ConnectionInterface.php b/src/Illuminate/Database/ConnectionInterface.php
index 288adb4206e3..b28c63f9c25b 100755
--- a/src/Illuminate/Database/ConnectionInterface.php
+++ b/src/Illuminate/Database/ConnectionInterface.php
@@ -9,7 +9,7 @@ interface ConnectionInterface
     /**
      * Begin a fluent query against a database table.
      *
-     * @param  \Closure|\Illuminate\Database\Query\Builder|string  $table
+     * @param  \Closure|\Illuminate\Database\Query\Builder|\UnitEnum|string  $table
      * @param  string|null  $as
      * @return \Illuminate\Database\Query\Builder
      */
diff --git a/src/Illuminate/Database/ConnectionResolverInterface.php b/src/Illuminate/Database/ConnectionResolverInterface.php
index b31e5a792565..47161d37d69f 100755
--- a/src/Illuminate/Database/ConnectionResolverInterface.php
+++ b/src/Illuminate/Database/ConnectionResolverInterface.php
@@ -7,7 +7,7 @@ interface ConnectionResolverInterface
     /**
      * Get a database connection instance.
      *
-     * @param  string|null  $name
+     * @param  \UnitEnum|string|null  $name
      * @return \Illuminate\Database\ConnectionInterface
      */
     public function connection($name = null);
diff --git a/src/Illuminate/Database/DatabaseManager.php b/src/Illuminate/Database/DatabaseManager.php
index 1315d207eafd..0e702d2a3b2c 100755
--- a/src/Illuminate/Database/DatabaseManager.php
+++ b/src/Illuminate/Database/DatabaseManager.php
@@ -13,6 +13,8 @@
 use PDO;
 use RuntimeException;
 
+use function Illuminate\Support\enum_value;
+
 /**
  * @mixin \Illuminate\Database\Connection
  */
@@ -85,12 +87,12 @@ public function __construct($app, ConnectionFactory $factory)
     /**
      * Get a database connection instance.
      *
-     * @param  string|null  $name
+     * @param  string|null|\UnitEnum  $name
      * @return \Illuminate\Database\Connection
      */
     public function connection($name = null)
     {
-        $name = $name ?: $this->getDefaultConnection();
+        $name = enum_value($name) ?: $this->getDefaultConnection();
 
         [$database, $type] = $this->parseConnectionName($name);
 
diff --git a/src/Illuminate/Filesystem/FilesystemManager.php b/src/Illuminate/Filesystem/FilesystemManager.php
index db6f82ddca0a..53372b53f40e 100644
--- a/src/Illuminate/Filesystem/FilesystemManager.php
+++ b/src/Illuminate/Filesystem/FilesystemManager.php
@@ -21,6 +21,8 @@
 use League\Flysystem\UnixVisibility\PortableVisibilityConverter;
 use League\Flysystem\Visibility;
 
+use function Illuminate\Support\enum_value;
+
 /**
  * @mixin \Illuminate\Contracts\Filesystem\Filesystem
  * @mixin \Illuminate\Filesystem\FilesystemAdapter
@@ -72,12 +74,12 @@ public function drive($name = null)
     /**
      * Get a filesystem instance.
      *
-     * @param  string|null  $name
+     * @param  \UnitEnum|string|null  $name
      * @return \Illuminate\Contracts\Filesystem\Filesystem
      */
     public function disk($name = null)
     {
-        $name = $name ?: $this->getDefaultDriver();
+        $name = enum_value($name) ?: $this->getDefaultDriver();
 
         return $this->disks[$name] = $this->get($name);
     }
diff --git a/src/Illuminate/Foundation/helpers.php b/src/Illuminate/Foundation/helpers.php
index 2580b987cb6c..2025c2c676bd 100644
--- a/src/Illuminate/Foundation/helpers.php
+++ b/src/Illuminate/Foundation/helpers.php
@@ -27,6 +27,8 @@
 use League\Uri\Contracts\UriInterface;
 use Symfony\Component\HttpFoundation\Response;
 
+use function Illuminate\Support\enum_value;
+
 if (! function_exists('abort')) {
     /**
      * Throw an HttpException with the given data.
@@ -622,12 +624,12 @@ function mix($path, $manifestDirectory = '')
     /**
      * Create a new Carbon instance for the current time.
      *
-     * @param  \DateTimeZone|string|null  $tz
+     * @param  \DateTimeZone|string|null|\UnitEnum  $tz
      * @return \Illuminate\Support\Carbon
      */
     function now($tz = null)
     {
-        return Date::now($tz);
+        return Date::now(enum_value($tz));
     }
 }
 
@@ -968,12 +970,12 @@ function to_route($route, $parameters = [], $status = 302, $headers = [])
     /**
      * Create a new Carbon instance for the current date.
      *
-     * @param  \DateTimeZone|string|null  $tz
+     * @param  \DateTimeZone|string|null|\UnitEnum  $tz
      * @return \Illuminate\Support\Carbon
      */
     function today($tz = null)
     {
-        return Date::today($tz);
+        return Date::today(enum_value($tz));
     }
 }
 
diff --git a/src/Illuminate/Redis/RedisManager.php b/src/Illuminate/Redis/RedisManager.php
index 7910c9468bbe..160a1103ea5b 100644
--- a/src/Illuminate/Redis/RedisManager.php
+++ b/src/Illuminate/Redis/RedisManager.php
@@ -11,6 +11,8 @@
 use Illuminate\Support\ConfigurationUrlParser;
 use InvalidArgumentException;
 
+use function Illuminate\Support\enum_value;
+
 /**
  * @mixin \Illuminate\Redis\Connections\Connection
  */
@@ -75,12 +77,12 @@ public function __construct($app, $driver, array $config)
     /**
      * Get a Redis connection by name.
      *
-     * @param  string|null  $name
+     * @param  string|null|\UnitEnum  $name
      * @return \Illuminate\Redis\Connections\Connection
      */
     public function connection($name = null)
     {
-        $name = $name ?: 'default';
+        $name = enum_value($name) ?: 'default';
 
         if (isset($this->connections[$name])) {
             return $this->connections[$name];
diff --git a/src/Illuminate/Support/Facades/DB.php b/src/Illuminate/Support/Facades/DB.php
index f1c41bc0abb4..7e342104a8d8 100644
--- a/src/Illuminate/Support/Facades/DB.php
+++ b/src/Illuminate/Support/Facades/DB.php
@@ -9,7 +9,7 @@
 use Illuminate\Database\Console\WipeCommand;
 
 /**
- * @method static \Illuminate\Database\Connection connection(string|null $name = null)
+ * @method static \Illuminate\Database\Connection connection(\UnitEnum|string|null $name = null)
  * @method static \Illuminate\Database\ConnectionInterface build(array $config)
  * @method static string calculateDynamicConnectionName(array $config)
  * @method static \Illuminate\Database\ConnectionInterface connectUsing(string $name, array $config, bool $force = false)
@@ -35,7 +35,7 @@
  * @method static void useDefaultSchemaGrammar()
  * @method static void useDefaultPostProcessor()
  * @method static \Illuminate\Database\Schema\Builder getSchemaBuilder()
- * @method static \Illuminate\Database\Query\Builder table(\Closure|\Illuminate\Database\Query\Builder|\Illuminate\Contracts\Database\Query\Expression|string $table, string|null $as = null)
+ * @method static \Illuminate\Database\Query\Builder table(\Closure|\Illuminate\Database\Query\Builder|\Illuminate\Contracts\Database\Query\Expression|\UnitEnum|string $table, string|null $as = null)
  * @method static \Illuminate\Database\Query\Builder query()
  * @method static mixed selectOne(string $query, array $bindings = [], bool $useReadPdo = true)
  * @method static mixed scalar(string $query, array $bindings = [], bool $useReadPdo = true)
diff --git a/src/Illuminate/Support/Facades/Redis.php b/src/Illuminate/Support/Facades/Redis.php
index b796ad09d325..3f18a839594c 100755
--- a/src/Illuminate/Support/Facades/Redis.php
+++ b/src/Illuminate/Support/Facades/Redis.php
@@ -3,7 +3,7 @@
 namespace Illuminate\Support\Facades;
 
 /**
- * @method static \Illuminate\Redis\Connections\Connection connection(string|null $name = null)
+ * @method static \Illuminate\Redis\Connections\Connection connection(\UnitEnum|string|null $name = null)
  * @method static \Illuminate\Redis\Connections\Connection resolve(string|null $name = null)
  * @method static array connections()
  * @method static void enableEvents()
diff --git a/src/Illuminate/Support/Facades/Schedule.php b/src/Illuminate/Support/Facades/Schedule.php
index f2a36001e2c1..b61a60839f9b 100644
--- a/src/Illuminate/Support/Facades/Schedule.php
+++ b/src/Illuminate/Support/Facades/Schedule.php
@@ -7,7 +7,7 @@
 /**
  * @method static \Illuminate\Console\Scheduling\CallbackEvent call(string|callable $callback, array $parameters = [])
  * @method static \Illuminate\Console\Scheduling\Event command(string $command, array $parameters = [])
- * @method static \Illuminate\Console\Scheduling\CallbackEvent job(object|string $job, string|null $queue = null, string|null $connection = null)
+ * @method static \Illuminate\Console\Scheduling\CallbackEvent job(object|string $job, \UnitEnum|string|null $queue = null, \UnitEnum|string|null $connection = null)
  * @method static \Illuminate\Console\Scheduling\Event exec(string $command, array $parameters = [])
  * @method static void group(\Closure $events)
  * @method static string compileArrayInput(string|int $key, array $value)
diff --git a/src/Illuminate/Support/Facades/Storage.php b/src/Illuminate/Support/Facades/Storage.php
index 3b52951ee617..4b7418ac7ddc 100644
--- a/src/Illuminate/Support/Facades/Storage.php
+++ b/src/Illuminate/Support/Facades/Storage.php
@@ -6,7 +6,7 @@
 
 /**
  * @method static \Illuminate\Contracts\Filesystem\Filesystem drive(string|null $name = null)
- * @method static \Illuminate\Contracts\Filesystem\Filesystem disk(string|null $name = null)
+ * @method static \Illuminate\Contracts\Filesystem\Filesystem disk(\UnitEnum|string|null $name = null)
  * @method static \Illuminate\Contracts\Filesystem\Cloud cloud()
  * @method static \Illuminate\Contracts\Filesystem\Filesystem build(string|array $config)
  * @method static \Illuminate\Contracts\Filesystem\Filesystem createLocalDriver(array $config, string $name = 'local')