From 4f9a29827321802c3e38d56b8c26c8beff3901f5 Mon Sep 17 00:00:00 2001
From: Lars Jung <lrsjng@gmail.com>
Date: Wed, 13 May 2015 22:30:38 +0200
Subject: [PATCH] Fix some edge case.

---
 src/_h5ai/backend/php/core/class-util.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/_h5ai/backend/php/core/class-util.php b/src/_h5ai/backend/php/core/class-util.php
index faa750cd..c75c497e 100644
--- a/src/_h5ai/backend/php/core/class-util.php
+++ b/src/_h5ai/backend/php/core/class-util.php
@@ -52,7 +52,8 @@ class Util {
 
     public static function ends_with($sequence, $tail) {
 
-        return substr($sequence, -strlen($tail)) === $tail;
+        $len = strlen($tail);
+        return $len === 0 ? true : substr($sequence, -$len) === $tail;
     }
 
     public static function wrap_pattern($pattern) {