diff --git a/lib/Cake/Model/Datasource/DboSource.php b/lib/Cake/Model/Datasource/DboSource.php
index a41e88cef..235ff83d8 100644
--- a/lib/Cake/Model/Datasource/DboSource.php
+++ b/lib/Cake/Model/Datasource/DboSource.php
@@ -862,7 +862,7 @@ class DboSource extends DataSource {
 		} catch (Exception $e) {
 			$connected = false;
 		}
-		$this->connected = ! empty($connected);
+		$this->connected = !empty($connected);
 		return $this->connected;
 	}
 
diff --git a/lib/Cake/Network/CakeResponse.php b/lib/Cake/Network/CakeResponse.php
index a19299228..de02e9c52 100644
--- a/lib/Cake/Network/CakeResponse.php
+++ b/lib/Cake/Network/CakeResponse.php
@@ -832,7 +832,7 @@ class CakeResponse {
 			if (!$public && !$private && !$noCache) {
 				return null;
 			}
-			$sharable = $public || ! ($private || $noCache);
+			$sharable = $public || !($private || $noCache);
 			return $sharable;
 		}
 		if ($public) {
diff --git a/lib/Cake/Test/Case/Network/Email/CakeEmailTest.php b/lib/Cake/Test/Case/Network/Email/CakeEmailTest.php
index 7945f7481..3be1a7f95 100644
--- a/lib/Cake/Test/Case/Network/Email/CakeEmailTest.php
+++ b/lib/Cake/Test/Case/Network/Email/CakeEmailTest.php
@@ -2288,10 +2288,10 @@ class CakeEmailTest extends CakeTestCase {
 	protected function _getEmailByOldStyleCharset($charset, $headerCharset) {
 		$email = new CakeEmail(array('transport' => 'Debug'));
 
-		if (! empty($charset)) {
+		if (!empty($charset)) {
 			$email->charset = $charset;
 		}
-		if (! empty($headerCharset)) {
+		if (!empty($headerCharset)) {
 			$email->headerCharset = $headerCharset;
 		}
 
@@ -2312,10 +2312,10 @@ class CakeEmailTest extends CakeTestCase {
 	protected function _getEmailByNewStyleCharset($charset, $headerCharset) {
 		$email = new CakeEmail(array('transport' => 'Debug'));
 
-		if (! empty($charset)) {
+		if (!empty($charset)) {
 			$email->charset($charset);
 		}
-		if (! empty($headerCharset)) {
+		if (!empty($headerCharset)) {
 			$email->headerCharset($headerCharset);
 		}