Better cli detection for phpdbg (#18781)

Author: Jordan Hoff

src/Illuminate/Foundation/Bootstrap/LoadEnvironmentVariables.php

@@ -38,7 +38,7 @@ public function bootstrap(Application $app)
      */
     protected function checkForSpecificEnvironmentFile($app)
     {
-        if (php_sapi_name() == 'cli' && ($input = new ArgvInput)->hasParameterOption('--env')) {
+        if ($app->runningInConsole() && ($input = new ArgvInput)->hasParameterOption('--env')) {
             $this->setEnvironmentFilePath(
                 $app, $app->environmentFile().'.'.$input->getParameterOption('--env')
             );

src/Illuminate/Support/Debug/Dumper.php

@@ -16,7 +16,7 @@ class Dumper
     public function dump($value)
     {
         if (class_exists(CliDumper::class)) {
-            $dumper = 'cli' === PHP_SAPI ? new CliDumper : new HtmlDumper;
+            $dumper = in_array(PHP_SAPI, ['cli', 'phpdbg']) ? new CliDumper : new HtmlDumper;
 
             $dumper->dump((new VarCloner)->cloneVar($value));
         } else {