CI: Fix psalm EmptyArrayAccess errors

public/main/inc/lib/userportal.lib.php

@@ -930,7 +930,10 @@ class IndexManager
                 $this->load_directories_preview,
                 $useUserLanguageFilterIfAvailable
             );*/
-            $courses = [];
+            $courses = [
+                'in_category' => [],
+                'not_category' => [],
+            ];
 
             // Course option (show student progress)
             // This code will add new variables (Progress, Score, Certificate)
@@ -981,7 +984,6 @@ class IndexManager
                     }
                 }
 
-                if (isset($courses['in_category'])) {
                     foreach ($courses['in_category'] as $key1 => $value) {
                         if (isset($courses['in_category'][$key1]['courses'])) {
                             foreach ($courses['in_category'][$key1]['courses'] as $key2 => $courseInCatInfo) {
@@ -1043,9 +1045,7 @@ class IndexManager
                             }
                         }
                     }
-                }
 
-                if (isset($courses['not_category'])) {
                     foreach ($courses['not_category'] as $key => $courseNotInCatInfo) {
                         $courseCode = $courseNotInCatInfo['course_code'];
                         if ($studentInfoProgress) {
@@ -1100,7 +1100,6 @@ class IndexManager
                             }
                         }
                     }
-                }
             }
 
             if ($viewGridCourses) {

public/main/tracking/course_session_report.php

@@ -157,7 +157,13 @@ if (!empty($users) && is_array($users)) {
                     );
                     $total_course += $result;
                     $total_result_by_user += $result;
+                    if (!isset($course_average[$current_course['code']])) {
+                        $course_average[$current_course['code']] = 0;
+                    }
                     $course_average[$current_course['code']] += $total_course;
+                    if (!isset($course_average_counter[$current_course['code']])) {
+                        $course_average_counter[$current_course['code']] = 0;
+                    }
                     $course_average_counter[$current_course['code']]++;
                     $result = $result.' ('.$user_info_stat['attempts'].' '.get_lang('Attempts').')';
                     $counter++;

src/CoreBundle/State/CategorizedExerciseResultStateProvider.php

@@ -302,7 +302,10 @@ class CategorizedExerciseResultStateProvider implements ProviderInterface
         }
 
         if (($show_results || $show_only_score) && $showTotalScore) {
-            if (MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY !== $result['answer_type']) {
+            if ($result
+                && isset($result['answer_type'])
+                && MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY !== $result['answer_type']
+            ) {
                 $pluginEvaluation = QuestionOptionsEvaluationPlugin::create();
                 if ('true' === $pluginEvaluation->get(QuestionOptionsEvaluationPlugin::SETTING_ENABLE)) {
                     $formula = $pluginEvaluation->getFormulaForExercise($objExercise->getId());