Enabled Debugger::exportVar() to display private & protected properties.

This will only work in PHP >= 5.3. Patch originally created
by 'dereuromark'.

lib/Cake/Test/Case/Utility/DebuggerTest.php

@@ -325,8 +325,43 @@ object(View) {
 	elementCacheSettings => array()
 	int => (int) 2
 	float => (float) 1.333
+
+TEXT;
+		if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
+			$expected .= <<<TEXT
+	[protected] _passedVars => array(
+		(int) 0 => 'viewVars',
+		(int) 1 => 'autoLayout',
+		(int) 2 => 'ext',
+		(int) 3 => 'helpers',
+		(int) 4 => 'view',
+		(int) 5 => 'layout',
+		(int) 6 => 'name',
+		(int) 7 => 'theme',
+		(int) 8 => 'layoutPath',
+		(int) 9 => 'viewPath',
+		(int) 10 => 'request',
+		(int) 11 => 'plugin',
+		(int) 12 => 'passedArgs',
+		(int) 13 => 'cacheAction'
+	)
+	[protected] _scripts => array()
+	[protected] _paths => array()
+	[protected] _helpersLoaded => false
+	[protected] _parents => array()
+	[protected] _current => null
+	[protected] _currentType => ''
+	[protected] _stack => array()
+	[protected] _eventManager => object(CakeEventManager) {}
+	[protected] _eventManagerConfigured => false
+	[private] __viewFileName => null
+
+TEXT;
+		}
+		$expected .= <<<TEXT
 }
 TEXT;
+
 		$this->assertTextEquals($expected, $result);
 
 		$data = array(

lib/Cake/Utility/Debugger.php

@@ -576,6 +576,31 @@ class Debugger {
 				$value = self::_export($value, $depth - 1, $indent);
 				$props[] = "$key => " . $value;
 			}
+
+			if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
+				$ref = new ReflectionObject($var);
+
+				$reflectionProperties = $ref->getProperties(ReflectionProperty::IS_PROTECTED);
+				foreach ($reflectionProperties as $reflectionProperty) {
+					$reflectionProperty->setAccessible(true);
+					$property = $reflectionProperty->getValue($var);
+
+					$value = self::_export($property, $depth - 1, $indent);
+					$key = $reflectionProperty->name;
+					$props[] = "[protected] $key => " . $value;
+				}
+
+				$reflectionProperties = $ref->getProperties(ReflectionProperty::IS_PRIVATE);
+				foreach ($reflectionProperties as $reflectionProperty) {
+					$reflectionProperty->setAccessible(true);
+					$property = $reflectionProperty->getValue($var);
+
+					$value = self::_export($property, $depth - 1, $indent);
+					$key = $reflectionProperty->name;
+					$props[] = "[private] $key => " . $value;
+				}
+			}
+
 			$out .= $break . implode($break, $props) . $end;
 		}
 		$out .= '}';