[TASK] Fix more php8.1 problems

Classes/Controller/LatestController.php

@@ -64,14 +64,17 @@ class LatestController extends AbstractController {
 	 * @throws \TYPO3\CMS\Extbase\Configuration\Exception\InvalidConfigurationTypeException
 	 */
 	public function indexAction(array $newsMetaData = [], $offset = 0): ?\Psr\Http\Message\ResponseInterface {
-		$limit = ((int) $this->settings['limit']);
+		$limit = 0;
+		if (isset($this->settings['limit'])) {
+			$limit = ((int) $this->settings['limit']);
+		}
 		$limit = ($limit < 1 ? 1 : $limit);
 
 		$configurationService = GeneralUtility::makeInstance(ConfigurationService::class);
 		$sortBy = $configurationService->getConfiguration('sortBy', $this->settings);
 
-		$categoryUids = NULL;
-		$tagUids = NULL;
+		$categoryUids = [];
+		$tagUids = [];
 		if (isset($this->settings['categories'])) {
 			$categoryUids = GeneralUtility::intExplode(',', $this->settings['categories'], TRUE);
 		}

Classes/Controller/ListByCategoryController.php

@@ -86,7 +86,9 @@ class ListByCategoryController extends AbstractController {
 	 * @throws \TYPO3\CMS\Extbase\Mvc\Exception\InvalidArgumentNameException
 	 */
 	public function initializeIndexAction() {
-		$currentPageBrowserPage = (int) GeneralUtility::_GP('tx_sgnews_pagebrowser')['currentPage'];
+		$currentPageBrowserPage = GeneralUtility::_GP('tx_sgnews_pagebrowser')
+			? (int) GeneralUtility::_GP('tx_sgnews_pagebrowser')['currentPage']
+			: 0;
 		if ($currentPageBrowserPage > 0) {
 			$this->request->setArgument('currentPageBrowserPage', $currentPageBrowserPage);
 		}
@@ -106,8 +108,14 @@ class ListByCategoryController extends AbstractController {
 	 */
 	public function indexAction(array $newsMetaData = [], int $currentPageBrowserPage = 0): ?\Psr\Http\Message\ResponseInterface {
 		$filterByCategories = FALSE;
-		$categoryUids = GeneralUtility::intExplode(',', $this->settings['categories']);
-		$tagUids = GeneralUtility::intExplode(',', $this->settings['tags'], TRUE);
+		$categoryUids = [];
+		$tagUids = [];
+		if (isset($this->settings['categories'])) {
+			$categoryUids = GeneralUtility::intExplode(',', $this->settings['categories'], TRUE);
+		}
+		if (isset($this->settings['tags'])) {
+			$tagUids = GeneralUtility::intExplode(',', $this->settings['tags'], TRUE);
+		}
 		foreach ($categoryUids as $categoryUid) {
 			if ($categoryUid > 0) {
 				$filterByCategories = TRUE;
@@ -135,8 +143,14 @@ class ListByCategoryController extends AbstractController {
 			}
 		}
 
-		$startTime = (int) $this->settings['starttime'];
-		$endTime = (int) $this->settings['endtime'];
+		$startTime = 0;
+		$endTime = 0;
+		if (isset($this->settings['starttime'])) {
+			$startTime = (int) $this->settings['starttime'];
+		}
+		if (isset($this->settings['endtime'])) {
+			$endTime = (int) $this->settings['endtime'];
+		}
 		$newsPerPage = (int) $this->settings['newsLimitPerPage'];
 
 		$newsCount = $this->newsRepository->newsCountByCategories($categoryUids, $tagUids, $startTime, $endTime);