Fix more type errors, stricter typing

1 files changed, 5 insertions, 5 deletions

diff --git a/modules-available/translation/page.inc.php b/modules-available/translation/page.inc.php
index 578e27dc..4563b8e5 100644
--- a/modules-available/translation/page.inc.php
+++ b/modules-available/translation/page.inc.php
@@ -429,7 +429,7 @@ class Page_Translation extends Page
 	 */
 	private function loadUsedTemplateTags(Module $module = null): array
 	{
-		if ($module === false) {
+		if ($module === null) {
 			$module = $this->module;
 		}
 		$tags = array();
@@ -459,7 +459,7 @@ class Page_Translation extends Page
 	 */
 	private function loadUsedMessageTags(Module $module = null): array
 	{
-		if ($module === false) {
+		if ($module === null) {
 			$module = $this->module;
 		}
 		$allFiles = $this->getAllFiles('modules', '.php');
@@ -491,7 +491,7 @@ class Page_Translation extends Page
 	 */
 	private function loadUsedModuleTags(Module $module = null): array
 	{
-		if ($module === false) {
+		if ($module === null) {
 			$module = $this->module;
 		}
 		$tags = $this->loadTagsFromPhp('/Dictionary\s*::\s*translate\s*\(\s*[\'"](?<tag>[^\'"\.]*)[\'"]\s*[\),]/i',
@@ -519,7 +519,7 @@ class Page_Translation extends Page
 		$want = array();
 		foreach (Module::getAll() as $module) {
 			$cat = $module->getCategory();
-			if (substr($cat, 0, $skip) === $match) {
+			if ($cat !== null && substr($cat, 0, $skip) === $match) {
 				$want[substr($cat, $skip)] = true;
 			}
 		}
@@ -585,7 +585,7 @@ class Page_Translation extends Page
 	 */
 	private function getModuleTranslationStatus(string $lang, string $file, bool $fallback, array $tags, Module $module = null): array
 	{
-		if ($module === false) {
+		if ($module === null) {
 			$module = $this->module;
 		}
 		if ($fallback) {