--- fenglin/lib/str_process.inc.php	2025/04/29 11:55:32	1.18
+++ fenglin/lib/str_process.inc.php	2025/05/19 01:48:57	1.19
@@ -1,5 +1,5 @@
 <?php
-function str_length(string $str) : string
+function str_length(string $str) : int
 {
 	$len = strlen($str);
 	$ret = 0;