From 4d77cb059dfd4db72179dde9d9da8c17dfad2d54 Mon Sep 17 00:00:00 2001
From: domingues <fabio.a.domingues@gmail.com>
Date: Tue, 13 Dec 2016 16:16:12 +0000
Subject: [PATCH] Fix a bug in Xml::fromArray()

When creating from an array with elements like this: `[ "a" => [ 0 ] ]` or `[ "a" => [ '0' ] ]` it fails and produces XML like this `<a/>` instant of `<a>0</a>`.

The problem is that in PHP `empty('0')` is true, so an exception to this case is needed.
---
 lib/Cake/Utility/Xml.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Cake/Utility/Xml.php b/lib/Cake/Utility/Xml.php
index 95bb4659e..f27fc1497 100644
--- a/lib/Cake/Utility/Xml.php
+++ b/lib/Cake/Utility/Xml.php
@@ -312,7 +312,7 @@ class Xml {
 				$childNS = $value['xmlns:'];
 				unset($value['xmlns:']);
 			}
-		} elseif (!empty($value) || $value === 0) {
+		} elseif (!empty($value) || $value === 0 || $value === '0') {
 			$childValue = (string)$value;
 		}