symfony
diff --git a/‎src/Symfony/Component/Routing/Loader/Configurator/ImportConfigurator.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Loader/Configurator/ImportConfigurator.php
+7-1Lines changed: 7 additions & 1 deletion b/‎src/Symfony/Component/Routing/Loader/Configurator/ImportConfigurator.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Loader/Configurator/ImportConfigurator.php
+7-1Lines changed: 7 additions & 1 deletion
diff --git a/‎src/Symfony/Component/Routing/Loader/Configurator/Traits/RouteTrait.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Loader/Configurator/Traits/RouteTrait.php
-10Lines changed: 0 additions & 10 deletions b/‎src/Symfony/Component/Routing/Loader/Configurator/Traits/RouteTrait.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Loader/Configurator/Traits/RouteTrait.php
-10Lines changed: 0 additions & 10 deletions
diff --git a/‎src/Symfony/Component/Routing/Tests/Fixtures/php_dsl.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Tests/Fixtures/php_dsl.php
+3Lines changed: 3 additions & 0 deletions b/‎src/Symfony/Component/Routing/Tests/Fixtures/php_dsl.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Tests/Fixtures/php_dsl.php
+3Lines changed: 3 additions & 0 deletions
diff --git a/‎src/Symfony/Component/Routing/Tests/Loader/PhpFileLoaderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Tests/Loader/PhpFileLoaderTest.php
+2Lines changed: 2 additions & 0 deletions b/‎src/Symfony/Component/Routing/Tests/Loader/PhpFileLoaderTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/Routing/Tests/Loader/PhpFileLoaderTest.php
+2Lines changed: 2 additions & 0 deletions
@@ -40,8 +40,14 @@ public function __destruct()
      *
      * @return $this
      */
-    final public function prefix($prefix)
+    final public function prefix($prefix, string $namePrefix = '')
     {
+        if ('' !== $namePrefix) {
+            $this->route->addNamePrefix($namePrefix);
+        }
+        if (!$prefix) {
+            return $this;
+        }
         if (!\is_array($prefix)) {
             $this->route->addPrefix($prefix);
         } else {
 
@@ -124,14 +124,4 @@ final public function controller($controller)
 
         return $this;
     }
-
-    /**
-     * Adds a prefix to the name of all the routes within the collection.
-     */
-    final public function addNamePrefix(string $prefix): self
-    {
-        $this->route->addNamePrefix($prefix);
-
-        return $this;
-    }
 }
@@ -15,6 +15,9 @@
         ->prefix('/sub')
         ->requirements(array('id' => '\d+'));
 
+    $routes->import('php_dsl_sub.php')
+        ->prefix('/zub', 'z_');
+
     $routes->add('ouf', '/ouf')
         ->schemes(array('https'))
         ->methods(array('GET'))
 
@@ -106,6 +106,8 @@ public function testRoutingConfigurator()
             ->setHost('host')
             ->setRequirements(array('id' => '\d+'))
         );
+        $expectedCollection->add('z_c_bar', new Route('/zub/pub/bar'));
+        $expectedCollection->add('z_c_pub_buz', (new Route('/zub/pub/buz'))->setHost('host'));
         $expectedCollection->add('ouf', (new Route('/ouf'))
             ->setSchemes(array('https'))
             ->setMethods(array('GET'))