Fix bug in validating ISBN 13s

2022-03-11 23:31:41 +01:00
parent 589161219f
commit 9507387c8a
1 changed files with 1 additions and 1 deletions
--- a/src/MD_STD_IN.php
+++ b/src/MD_STD_IN.php
@ -316,7 +316,7 @@ final class MD_STD_IN {
        }

        // ISBN 13
-        if (\mb_strlen($input) === 10) {
+        if (\mb_strlen($input) === 13) {

            if (\preg_match('/\d{13}/i', $input)) {
                return $input;