diff --git a/app/helpers.php b/app/helpers.php
index c2498b43..ddfa98e1 100644
--- a/app/helpers.php
+++ b/app/helpers.php
@@ -177,3 +177,54 @@ if (! function_exists('option')) {
         return Option::get($key);
     }
 }
+
+if (! function_exists('menv')) {
+    /**
+     * Gets the value of an environment variable by getenv() or $_ENV.
+     *
+     * @param  string  $key
+     * @param  mixed   $default
+     * @return mixed
+     */
+    function menv($key, $default = null)
+    {
+        if (function_exists('getenv')) {
+            // try to read by getenv()
+            $value = getenv($key);
+
+            if ($value === false) {
+                return value($default);
+            }
+        } else {
+            // try to read from $_ENV or $_SERVER
+            if (isset($_ENV[$key])) {
+                $value = $_ENV[$key];
+            } elseif (isset($_SERVER[$key])) {
+                $value = $_SERVER[$key];
+            } else {
+                return value($default);
+            }
+        }
+
+        switch (strtolower($value)) {
+            case 'true':
+            case '(true)':
+                return true;
+            case 'false':
+            case '(false)':
+                return false;
+            case 'empty':
+            case '(empty)':
+                return '';
+            case 'null':
+            case '(null)':
+                return;
+        }
+
+        if (strlen($value) > 1 && Str::startsWith($value, '"') && Str::endsWith($value, '"')) {
+            return substr($value, 1, -1);
+        }
+
+        return $value;
+    }
+}
diff --git a/config/app.php b/config/app.php
index f827b610..a4c6473c 100644
--- a/config/app.php
+++ b/config/app.php
@@ -22,7 +22,7 @@ return [
     |
     */
 
-    'env' => env('APP_ENV', 'production'),
+    'env' => menv('APP_ENV', 'production'),
 
     /*
     |--------------------------------------------------------------------------
@@ -35,7 +35,7 @@ return [
     |
     */
 
-    'debug' => env('APP_DEBUG', false),
+    'debug' => menv('APP_DEBUG', false),
 
     /*
     |--------------------------------------------------------------------------
@@ -48,7 +48,7 @@ return [
     |
     */
 
-    'url' => env('APP_URL', 'http://localhost'),
+    'url' => menv('APP_URL', 'http://localhost'),
 
     /*
     |--------------------------------------------------------------------------
@@ -100,7 +100,7 @@ return [
     |
     */
 
-    'key' => env('APP_KEY', 'this_is_dangerous_default_key'),
+    'key' => menv('APP_KEY', 'this_is_dangerous_default_key'),
 
     'cipher' => 'AES-256-CBC',
 
@@ -117,7 +117,7 @@ return [
     |
     */
 
-    'log' => env('APP_LOG', 'single'),
+    'log' => menv('APP_LOG', 'single'),
 
     /*
     |--------------------------------------------------------------------------
diff --git a/config/cache.php b/config/cache.php
index 3ffa840b..b6353a74 100644
--- a/config/cache.php
+++ b/config/cache.php
@@ -13,7 +13,7 @@ return [
     |
     */
 
-    'default' => env('CACHE_DRIVER', 'file'),
+    'default' => menv('CACHE_DRIVER', 'file'),
 
     /*
     |--------------------------------------------------------------------------
@@ -51,8 +51,8 @@ return [
             'driver' => 'memcached',
             'servers' => [
                 [
-                    'host' => env('MEMCACHED_HOST', '127.0.0.1'),
-                    'port' => env('MEMCACHED_PORT', 11211),
+                    'host' => menv('MEMCACHED_HOST', '127.0.0.1'),
+                    'port' => menv('MEMCACHED_PORT', 11211),
                     'weight' => 100,
                 ],
             ],
diff --git a/config/database.php b/config/database.php
index 8451a62f..72933209 100644
--- a/config/database.php
+++ b/config/database.php
@@ -26,7 +26,7 @@ return [
     |
     */
 
-    'default' => env('DB_CONNECTION', 'mysql'),
+    'default' => menv('DB_CONNECTION', 'mysql'),
 
     /*
     |--------------------------------------------------------------------------
@@ -48,17 +48,17 @@ return [
 
         'sqlite' => [
             'driver' => 'sqlite',
-            'database' => env('DB_DATABASE', database_path('database.sqlite')),
+            'database' => menv('DB_DATABASE', database_path('database.sqlite')),
             'prefix' => '',
         ],
 
         'mysql' => [
             'driver' => 'mysql',
-            'host' => env('DB_HOST', 'localhost'),
-            'port' => env('DB_PORT', '3306'),
-            'database' => env('DB_DATABASE', 'forge'),
-            'username' => env('DB_USERNAME', 'forge'),
-            'password' => env('DB_PASSWORD', ''),
+            'host' => menv('DB_HOST', 'localhost'),
+            'port' => menv('DB_PORT', '3306'),
+            'database' => menv('DB_DATABASE', 'forge'),
+            'username' => menv('DB_USERNAME', 'forge'),
+            'password' => menv('DB_PASSWORD', ''),
             'charset' => 'utf8',
             'collation' => 'utf8_unicode_ci',
             'prefix' => '',
@@ -68,11 +68,11 @@ return [
 
         'pgsql' => [
             'driver' => 'pgsql',
-            'host' => env('DB_HOST', 'localhost'),
-            'port' => env('DB_PORT', '5432'),
-            'database' => env('DB_DATABASE', 'forge'),
-            'username' => env('DB_USERNAME', 'forge'),
-            'password' => env('DB_PASSWORD', ''),
+            'host' => menv('DB_HOST', 'localhost'),
+            'port' => menv('DB_PORT', '5432'),
+            'database' => menv('DB_DATABASE', 'forge'),
+            'username' => menv('DB_USERNAME', 'forge'),
+            'password' => menv('DB_PASSWORD', ''),
             'charset' => 'utf8',
             'prefix' => '',
             'schema' => 'public',
@@ -109,9 +109,9 @@ return [
         'cluster' => false,
 
         'default' => [
-            'host' => env('REDIS_HOST', 'localhost'),
-            'password' => env('REDIS_PASSWORD', null),
-            'port' => env('REDIS_PORT', 6379),
+            'host' => menv('REDIS_HOST', 'localhost'),
+            'password' => menv('REDIS_PASSWORD', null),
+            'port' => menv('REDIS_PORT', 6379),
             'database' => 0,
         ],
 
diff --git a/config/mail.php b/config/mail.php
index 209d96da..da2ebb73 100644
--- a/config/mail.php
+++ b/config/mail.php
@@ -16,7 +16,7 @@ return [
     |
     */
 
-    'driver' => env('MAIL_DRIVER', 'smtp'),
+    'driver' => menv('MAIL_DRIVER', 'smtp'),
 
     /*
     |--------------------------------------------------------------------------
@@ -29,7 +29,7 @@ return [
     |
     */
 
-    'host' => env('MAIL_HOST', ''),
+    'host' => menv('MAIL_HOST', ''),
 
     /*
     |--------------------------------------------------------------------------
@@ -42,7 +42,7 @@ return [
     |
     */
 
-    'port' => env('MAIL_PORT', 587),
+    'port' => menv('MAIL_PORT', 587),
 
     /*
     |--------------------------------------------------------------------------
@@ -68,7 +68,7 @@ return [
     |
     */
 
-    'encryption' => env('MAIL_ENCRYPTION', 'tls'),
+    'encryption' => menv('MAIL_ENCRYPTION', 'tls'),
 
     /*
     |--------------------------------------------------------------------------
@@ -81,7 +81,7 @@ return [
     |
     */
 
-    'username' => env('MAIL_USERNAME'),
+    'username' => menv('MAIL_USERNAME'),
 
     /*
     |--------------------------------------------------------------------------
@@ -94,7 +94,7 @@ return [
     |
     */
 
-    'password' => env('MAIL_PASSWORD'),
+    'password' => menv('MAIL_PASSWORD'),
 
     /*
     |--------------------------------------------------------------------------
diff --git a/config/queue.php b/config/queue.php
index d0f732a6..948197d4 100644
--- a/config/queue.php
+++ b/config/queue.php
@@ -15,7 +15,7 @@ return [
     |
     */
 
-    'default' => env('QUEUE_DRIVER', 'sync'),
+    'default' => menv('QUEUE_DRIVER', 'sync'),
 
     /*
     |--------------------------------------------------------------------------
@@ -78,7 +78,7 @@ return [
     */
 
     'failed' => [
-        'database' => env('DB_CONNECTION', 'mysql'),
+        'database' => menv('DB_CONNECTION', 'mysql'),
         'table' => 'failed_jobs',
     ],
 
diff --git a/config/secure.php b/config/secure.php
index bf829405..0d764849 100644
--- a/config/secure.php
+++ b/config/secure.php
@@ -9,6 +9,6 @@ return [
     | Load them from env to config, preventing cache problems
     |
     */
-    'cipher' => env('PWD_METHOD', 'SALTED2MD5'),
-    'salt'   => env('APP_KEY', '')
+    'cipher' => menv('PWD_METHOD', 'SALTED2MD5'),
+    'salt'   => menv('APP_KEY', '')
 ];
diff --git a/config/session.php b/config/session.php
index 47ceefd3..e5c04628 100644
--- a/config/session.php
+++ b/config/session.php
@@ -16,7 +16,7 @@ return [
     |
     */
 
-    'driver' => env('SESSION_DRIVER', 'file'),
+    'driver' => menv('SESSION_DRIVER', 'file'),
 
     /*
     |--------------------------------------------------------------------------