fix phpstan warnings

1 files changed, 7 insertions, 1 deletions

diff --git a/init.php b/init.php
index 70e8aa8..be87e61 100644
--- a/init.php
+++ b/init.php
@@ -11,7 +11,13 @@ class Hotkeys_Ru extends Plugin {
 		$host->add_hook($host::HOOK_HOTKEY_MAP, $this);
 	}
 
-	private function mb_strtr($str, $from, $to) {
+	/**
+	 * @param string $str
+	 * @param string|array<string> $from
+	 * @param string $to
+	 * @return string
+	 */
+	private function mb_strtr(string $str, mixed $from, string $to) : string {
 		$keys = [];
 		$values = [];