Deduplicate getEnvironment()

Author: Brugman

src/Defaults.php

@@ -19,7 +19,7 @@ public static function instance()
 
     public function environment()
     {
-        return ( getenv('WP_ENV') ?: ( defined( 'WP_ENV' ) ? WP_ENV : null ) );
+        return \Rollbar\Wordpress\Plugin::getEnvironment();
     }
 
     public function root()

src/Plugin.php

@@ -53,7 +53,7 @@ private function initSettings() {
         Settings::init();
     }
 
-    private function getEnvironment()
+    public static function getEnvironment()
     {
         return ( getenv('WP_ENV') ?: ( defined( 'WP_ENV' ) ? WP_ENV : null ) );
     }

src/UI.php

@@ -217,16 +217,13 @@ public static function status($settings)
         </p>
         <?php
     }
-
-    public static function getEnvironment()
-    {
-        return ( getenv('WP_ENV') ?: ( defined( 'WP_ENV' ) ? WP_ENV : null ) );
-    }
 
     public static function environmentSettingNote()
     {
+        $env = \Rollbar\Wordpress\Plugin::getEnvironment();
+
         $output = 
-            '<p><code>WP_ENV</code> environment variable: <code> ' . self::getEnvironment() . ' </code></p>' .
+            '<p><code>WP_ENV</code> environment variable: <code>' . $env . '</code></p>' .
             '<p><small><strong>Rollbar for Wordpress honors the WP_ENV environment variable.</strong> ' .
             'If the <code>environment</code> setting is not specified here, it will take ' .
             'precendence over the default value.</strong></small></p>';