formatting and fixing

Author: taylorotwell

src/Illuminate/Mail/MailManager.php

@@ -72,19 +72,6 @@ public function mailer($name = null)
         return $this->mailers[$name] = $this->get($name);
     }
 
-    /**
-     * Forget a mailer instance by name.
-     *
-     * @param  string  $name
-     * @return void
-     */
-    public function forgetMailer($name)
-    {
-        if(isset($this->mailers[$name])){
-            unset($this->mailers[$name]);
-        }
-    }
-
     /**
      * Get a mailer driver instance.
      *
@@ -453,6 +440,25 @@ public function setDefaultDriver(string $name)
         $this->app['config']['mail.default'] = $name;
     }
 
+    /**
+     * Forget a mailer instance by name.
+     *
+     * @param  array|string|null  $name
+     * @return void
+     */
+    public function forgetMailer($name = null)
+    {
+        $name = $name ?? $this->getDefaultDriver();
+
+        foreach ((array) $name as $mailerName) {
+            if (isset($this->mailers[$mailerName])) {
+                unset($this->mailers[$mailerName]);
+            }
+        }
+
+        return $this;
+    }
+
     /**
      * Register a custom transport creator Closure.
      *