Fixed multibyte string encoding

Related to glpi-project/glpi#8495
laminas · Jan 14, 2021 · 87d737b · 87d737b
1 parent c1f2125
commit 87d737b
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/src/Header/ContentDisposition.php b/src/Header/ContentDisposition.php
@@ -149,7 +149,21 @@ public function getFieldValue($format = HeaderInterface::FORMAT_RAW)
                     $maxValueLength -= ($encodedLength - $decodedLength);
                 }
 
-                $valueParts = str_split($value, $maxValueLength);
+                if (function_exists('mb_str_split')) {
+                    // mbstring and PHP >= 7.4
+                    $valueParts = mb_str_split($value, $maxValueLength);
+                } elseif (function_exists('mb_strlen') && function_exists('mb_strlen')) {
+                    // mbstring and PHP < 7.4
+                    $valueParts = [];
+                    $length = mb_strlen($value);
+                    for ($i = 0; $i < $length; $i += $maxValueLength) {
+                        $valueParts[] = mb_substr($value, $i, $maxValueLength);
+                    }
+                } else {
+                    // Fallback
+                    $valueParts = str_split($value, $maxValueLength);
+                }
+
                 $i = 0;
                 foreach ($valueParts as $valuePart) {
                     $attributePart = $attribute . '*' . $i++;