From 1c206d06bc41d1b8a073613bdbe6d78bd79cdc28 Mon Sep 17 00:00:00 2001
From: Sergey Shuchkin <sergey.shuchkin@gmail.com>
Date: Sat, 12 Feb 2022 03:25:59 +0600
Subject: [PATCH] 1.1.11

---
 src/SimpleXLSXGen.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/SimpleXLSXGen.php b/src/SimpleXLSXGen.php
index ef6f679..4b86a8b 100644
--- a/src/SimpleXLSXGen.php
+++ b/src/SimpleXLSXGen.php
@@ -126,7 +126,11 @@ class SimpleXLSXGen {
                 $names[ mb_strtoupper( $sh['name']) ] = 1;
             }
             for( $i = 0; $i < 100; $i++ ) {
-                $new_name = ($i === 0) ? $name : $name .' ('.$i.')';
+                $postfix = ' ('.$i.')';
+                $new_name = ($i === 0) ? $name : $name . $postfix;
+                if (mb_strlen($new_name) > 31) {
+                    $new_name = mb_substr($name,0, 31-mb_strlen($postfix)) . $postfix;
+                }
                 $NEW_NAME = mb_strtoupper( $new_name );
                 if ( !isset( $names[ $NEW_NAME ]) ) {
                     $name = $new_name;