From 39b7023e756d8e7c84ca4de387a21271183d4695 Mon Sep 17 00:00:00 2001
From: Bryan Crowe <bryan@zapsolutions.com>
Date: Tue, 15 Oct 2013 22:32:46 -0400
Subject: [PATCH 1/2] Change is_null() calls to strict checks

---
 lib/Cake/Model/Behavior/TreeBehavior.php | 4 ++--
 lib/Cake/Network/CakeResponse.php        | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/Cake/Model/Behavior/TreeBehavior.php b/lib/Cake/Model/Behavior/TreeBehavior.php
index e87abedc3..94c2bb443 100644
--- a/lib/Cake/Model/Behavior/TreeBehavior.php
+++ b/lib/Cake/Model/Behavior/TreeBehavior.php
@@ -682,7 +682,7 @@ class TreeBehavior extends ModelBehavior {
 		$children = $Model->find('all', $params);
 		$hasChildren = (bool)$children;
 
-		if (!is_null($parentId)) {
+		if ($parentId !== null) {
 			if ($hasChildren) {
 				$Model->updateAll(
 					array($this->settings[$Model->alias]['left'] => $counter),
@@ -713,7 +713,7 @@ class TreeBehavior extends ModelBehavior {
 			$children = $Model->find('all', $params);
 		}
 
-		if (!is_null($parentId) && $hasChildren) {
+		if ($parentId !== null && $hasChildren) {
 			$Model->updateAll(
 				array($this->settings[$Model->alias]['right'] => $counter),
 				array($Model->escapeField() => $parentId)
diff --git a/lib/Cake/Network/CakeResponse.php b/lib/Cake/Network/CakeResponse.php
index 3db176327..bcda4266f 100644
--- a/lib/Cake/Network/CakeResponse.php
+++ b/lib/Cake/Network/CakeResponse.php
@@ -570,7 +570,7 @@ class CakeResponse {
 			if (is_numeric($header)) {
 				list($header, $value) = array($value, null);
 			}
-			if (is_null($value)) {
+			if ($value === null) {
 				list($header, $value) = explode(':', $header, 2);
 			}
 			$this->_headers[$header] = is_array($value) ? array_map('trim', $value) : trim($value);

From 5addb2cc9f7d7a6ea7812f4df1e285c09a7fbc56 Mon Sep 17 00:00:00 2001
From: Bryan Crowe <bryan@zapsolutions.com>
Date: Tue, 15 Oct 2013 22:53:04 -0400
Subject: [PATCH 2/2] Change is_null() calls to strict checks in
 CakeSchema::_arrayDiffAssoc()

---
 lib/Cake/Model/CakeSchema.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Cake/Model/CakeSchema.php b/lib/Cake/Model/CakeSchema.php
index a860108fb..6c4079e65 100644
--- a/lib/Cake/Model/CakeSchema.php
+++ b/lib/Cake/Model/CakeSchema.php
@@ -551,7 +551,7 @@ class CakeSchema extends Object {
 				continue;
 			}
 			$correspondingValue = $array2[$key];
-			if (is_null($value) !== is_null($correspondingValue)) {
+			if (($value === null ) !== ($correspondingValue === null)) {
 				$difference[$key] = $value;
 				continue;
 			}