PHPstan level 6 for Category.php (#5298)

* PHPstan level 6 for Category.php

* Fix a few things

* Minor fixes

* A few more fixes

---------

Co-authored-by: Luc <sanchezluc+freshrss@gmail.com>
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

1 files changed, 2 insertions, 2 deletions

diff --git a/cli/i18n/I18nData.php b/cli/i18n/I18nData.php
index 3f12d586c..b3bb6e34f 100644
--- a/cli/i18n/I18nData.php
+++ b/cli/i18n/I18nData.php
@@ -92,7 +92,7 @@ class I18nData {
 	 * @return array<string>
 	 */
 	private function getNonReferenceLanguages(): array {
-		return array_filter(array_keys($this->data), static function ($value) {
+		return array_filter(array_keys($this->data), static function (string $value) {
 			return static::REFERENCE_LANGUAGE !== $value;
 		});
 	}
@@ -144,7 +144,7 @@ class I18nData {
 		$keys = array_keys($this->data[static::REFERENCE_LANGUAGE][$this->getFilenamePrefix($key)]);
 		$parent = $this->getParentKey($key);
 
-		return array_values(array_filter($keys, static function ($element) use ($parent) {
+		return array_values(array_filter($keys, static function (string $element) use ($parent) {
 			return false !== strpos($element, $parent);
 		}));
 	}