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From e2c9854408bc0b45206336060e28603de3371c99 Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@remirepo.net>
Date: Thu, 12 Dec 2019 14:17:38 +0100
Subject: [PATCH] fix Trying to access array offset on value of type int
---
XML/Util.php | 2 +-
tests/IsValidNameTests.php | 24 ++++++++++++++++++++++++
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/XML/Util.php b/XML/Util.php
index df37e07..1ba45ac 100644
--- a/XML/Util.php
+++ b/XML/Util.php
@@ -918,7 +918,7 @@ public static function splitQualifiedName($qname, $defaultNs = null)
public static function isValidName($string)
{
// check for invalid chars
- if (!preg_match('/^[[:alpha:]_]\\z/', $string[0])) {
+ if (!is_string($string) || !strlen($string) || !preg_match('/^[[:alpha:]_]\\z/', $string[0])) {
return XML_Util::raiseError(
'XML names may only start with letter or underscore',
XML_UTIL_ERROR_INVALID_START
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