controller.php

<?php

class Controller_Foo extends Controller
{
    public function get()
    {
        return 'You got me!';
    }

    public function post()
    {
        return 'You posted me!';
    }
}
?>

sfFrontWebController.diff

--- a/lib/controller/sfFrontWebController.class.php
+++ b/lib/controller/sfFrontWebController.class.php
@@ -38,6 +38,12 @@ class sfFrontWebController extends sfWebController
       $request    = $this->context->getRequest();
       $moduleName = $request->getParameter('module');
       $actionName = $request->getParameter('action');
+      $method = $request->getMethod();
+
+      $parsedName = $moduleName;
+      if ($actionName != 'index') {
+          $parsedName .= '_' . $actionName;
+      }
 
       if (empty($moduleName) || empty($actionName))
       {
@@ -45,7 +51,7 @@ class sfFrontWebController extends sfWebController
       }
 
       // make the first request
-      $this->forward($moduleName, $actionName);
+      $this->forward($parsedName, $method);