From 0a605f40abbee8ff2e59506f3043d61e26954f38 Mon Sep 17 00:00:00 2001
From: Fomafix <fomafix@googlemail.com>
Date: Sat, 18 Jan 2020 14:40:02 +0100
Subject: [PATCH] Use PHP syntax features from PHP 7.1

* void return type (https://wiki.php.net/rfc/void_return_type)
* Nullable type (https://wiki.php.net/rfc/nullable_types)

The parent change ensures that PHP 7.1+ is required.

This change reverts commit 8eb162020f4b319e78be68c891c3b859ad242da1.

Change-Id: Ifb8fc52f4b161ea89fef2c84e51e4c8f2b648a49
---
 includes/UniversalLanguageSelectorHooks.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/UniversalLanguageSelectorHooks.php b/includes/UniversalLanguageSelectorHooks.php
index 29a50300..bf48555b 100644
--- a/includes/UniversalLanguageSelectorHooks.php
+++ b/includes/UniversalLanguageSelectorHooks.php
@@ -146,7 +146,7 @@ class UniversalLanguageSelectorHooks {
 	 * @param OutputPage $out
 	 * @return void
 	 */
-	protected static function handleSetLang( OutputPage $out ) {
+	protected static function handleSetLang( OutputPage $out ): void {
 		$languageToSet = self::getSetLang( $out );
 
 		if ( !$languageToSet ) {
@@ -471,7 +471,7 @@ class UniversalLanguageSelectorHooks {
 		}
 	}
 
-	private static function getSetLang( OutputPage $out ) {
+	private static function getSetLang( OutputPage $out ): ?string {
 		$setLangCode = $out->getRequest()->getText( 'setlang' );
 		if ( $setLangCode && Language::isSupportedLanguage( $setLangCode ) ) {
 			return $setLangCode;