From f2ed9e8344d8c7c46116e8e4b75a0d1bbeca7c02 Mon Sep 17 00:00:00 2001
From: Tim Schmitz <schmitz@leifos.de>
Date: Fri, 26 Jul 2024 13:41:00 +0200
Subject: [PATCH 1/3] Export: do not export tail dependencies if there are not
 entities

---
 Services/Export/classes/class.ilExport.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Services/Export/classes/class.ilExport.php b/Services/Export/classes/class.ilExport.php
index c165d8cae69f..ce62bd9798e5 100644
--- a/Services/Export/classes/class.ilExport.php
+++ b/Services/Export/classes/class.ilExport.php
@@ -602,6 +602,10 @@ public function processExporter(
         $this->log->debug("process tail dependencies of " . $a_entity);
         $sequence = $exp->getXmlExportTailDependencies($a_entity, $a_target_release, $a_id);
         foreach ($sequence as $s) {
+            if (empty((array) $s["ids"])) {
+                continue;
+            }
+
             $comp = explode("/", $s["component"]);
             $exp_class = "il" . $comp[1] . "Exporter";
             $s = $this->processExporter(

From 30d010a808012f30c6c64072ed5c5b9e18c72896 Mon Sep 17 00:00:00 2001
From: Tim Schmitz <schmitz@leifos.de>
Date: Fri, 26 Jul 2024 14:21:25 +0200
Subject: [PATCH 2/3] fix cp notice

---
 Services/Export/classes/class.ilExport.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Services/Export/classes/class.ilExport.php b/Services/Export/classes/class.ilExport.php
index ce62bd9798e5..dc4d01db5081 100644
--- a/Services/Export/classes/class.ilExport.php
+++ b/Services/Export/classes/class.ilExport.php
@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 /**
  * This file is part of ILIAS, a powerful learning management system
  * published by ILIAS open source e-Learning e.V.
@@ -17,6 +15,9 @@
  * https://github.com/ILIAS-eLearning
  *
  *********************************************************************/
+
+declare(strict_types=1);
+
 /**
  * Export
  * @author    Alex Killing <alex.killing@gmx.de>

From 4b22ca017bc75461fa13deaffc096af79d3ecc73 Mon Sep 17 00:00:00 2001
From: Tim Schmitz <schmitz@leifos.de>
Date: Mon, 5 Aug 2024 16:47:12 +0200
Subject: [PATCH 3/3] Export: more robust array access

---
 Services/Export/classes/class.ilExport.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Services/Export/classes/class.ilExport.php b/Services/Export/classes/class.ilExport.php
index dc4d01db5081..c6e73ef3c067 100644
--- a/Services/Export/classes/class.ilExport.php
+++ b/Services/Export/classes/class.ilExport.php
@@ -603,7 +603,7 @@ public function processExporter(
         $this->log->debug("process tail dependencies of " . $a_entity);
         $sequence = $exp->getXmlExportTailDependencies($a_entity, $a_target_release, $a_id);
         foreach ($sequence as $s) {
-            if (empty((array) $s["ids"])) {
+            if (empty((array) ($s["ids"] ?? []))) {
                 continue;
             }