diff --git a/core/Tracker/Action.php b/core/Tracker/Action.php
index bcd540bca0a..d875ced45f3 100644
--- a/core/Tracker/Action.php
+++ b/core/Tracker/Action.php
@@ -307,7 +307,7 @@ protected function getNameAndType()
     protected function getUrlAndType()
     {
         $url = $this->getActionUrl();
-        if (!is_null($url)) {
+        if (!empty($url)) {
             // normalize urls by stripping protocol and www
             $url = PageUrl::normalizeUrl($url);
             return array($url['url'], Tracker\Action::TYPE_PAGE_URL, $url['prefixId']);
diff --git a/core/Tracker/ActionSiteSearch.php b/core/Tracker/ActionSiteSearch.php
index 210d848386f..ee380be9791 100644
--- a/core/Tracker/ActionSiteSearch.php
+++ b/core/Tracker/ActionSiteSearch.php
@@ -54,6 +54,8 @@ function isSearchDetected()
         }
         $this->setActionName($actionName);
         $this->setActionUrl($url);
+
+        return true;
     }
 
     // FIXMEA replace by getNameAndType
diff --git a/core/Tracker/PageUrl.php b/core/Tracker/PageUrl.php
index 46fc0685de2..dc3073b3af5 100644
--- a/core/Tracker/PageUrl.php
+++ b/core/Tracker/PageUrl.php
@@ -321,7 +321,7 @@ public static function getUrlIfLookValid($url)
 
         if (!UrlHelper::isLookLikeUrl($url)) {
             Common::printDebug("WARNING: URL looks invalid and is discarded");
-            $url = '';
+            $url = false;
             return $url;
         }
         return $url;
diff --git a/core/Tracker/TableActionIds.php b/core/Tracker/TableActionIds.php
index 6fd46343fe5..ab64fa34fd9 100644
--- a/core/Tracker/TableActionIds.php
+++ b/core/Tracker/TableActionIds.php
@@ -95,7 +95,8 @@ public static function loadActionId($actionNamesAndTypes)
             $actionId = Tracker::getDatabase()->lastInsertId();
             Common::printDebug("Recorded a new action (" . Action::getTypeAsString($type) . ") in the lookup table: " . $name . " (idaction = " . $actionId . ")");
 
-            $actionNamesAndTypes[$actionToInsert][] = $actionId;
+            $keyIdAction = 3;
+            $actionNamesAndTypes[$actionToInsert][$keyIdAction] = $actionId;
         }
         return $actionNamesAndTypes;
     }
diff --git a/piwik.php b/piwik.php
index fa98df9076f..36201b00616 100644
--- a/piwik.php
+++ b/piwik.php
@@ -55,7 +55,12 @@
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/VisitInterface.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/Visit.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/GoalManager.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Tracker/PageUrl.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Tracker/TableActionIds.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/Action.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Tracker/ActionClickUrl.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Tracker/ActionPageview.php';
+require_once PIWIK_INCLUDE_PATH . '/core/Tracker/ActionSiteSearch.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/Request.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/Referrer.php';
 require_once PIWIK_INCLUDE_PATH . '/core/Tracker/VisitExcluded.php';