Added a a helper method to the runtime that merges env specific options with global ones

src/Runtime/Runtime.php

@@ -229,6 +229,27 @@ class Runtime
         return $default;
     }
 
+    /**
+     * Shortcut to get the the configuration option for a specific environment and merge it with
+     * the global one (environment specific overrides the global one if present).
+     *
+     * @param      $key
+     * @param null $defaultEnv
+     * @param null $defaultConfig
+     *
+     * @return array
+     */
+    public function getMergedEnvAndConfigOption($key, $defaultEnv = null, $defaultConfig = null)
+    {
+        $userGlobalOptions = $this->getConfigOption($key, $defaultConfig);
+        $userEnvOptions = $this->getEnvOption($key, $defaultEnv);
+
+        return array_merge(
+            (is_array($userGlobalOptions) ? $userGlobalOptions : []),
+            (is_array($userEnvOptions) ? $userEnvOptions : [])
+        );
+    }
+
     /**
      * Overwrites an Environment Configuration Option
      *