diff --git a/framework/yii/base/Exception.php b/framework/yii/base/Exception.php
index 19317ca..4f66e53 100644
--- a/framework/yii/base/Exception.php
+++ b/framework/yii/base/Exception.php
@@ -29,23 +29,33 @@ class Exception extends \Exception implements Arrayable
 	 */
 	public function toArray()
 	{
-		$array = array(
-			'type' => get_class($this),
-			'name' => $this->getName(),
-			'message' => $this->getMessage(),
-			'code' => $this->getCode(),
-		);
-		if (($prev = $this->getPrevious()) !== null) {
-			if ($prev instanceof self) {
-				$array['previous'] = $prev->toArray();
-			} else {
-				$array['previous'] = array(
-					'type' => get_class($prev),
-					'name' => 'Exception',
-					'message' => $prev->getMessage(),
-					'code' => $prev->getCode(),
-				);
-			}
+		return $this->toArrayRecursive($this);
+	}
+
+	/**
+	 * Returns the array representation of the exception and all previous exceptions recursively.
+	 * @param \Exception exception object
+	 * @return array the array representation of the exception.
+	 */
+	protected function toArrayRecursive($exception)
+	{
+		if ($exception instanceof self) {
+			$array = array(
+				'type' => get_class($this),
+				'name' => $this->getName(),
+				'message' => $this->getMessage(),
+				'code' => $this->getCode(),
+			);
+		} else {
+			$array = array(
+				'type' => get_class($exception),
+				'name' => 'Exception',
+				'message' => $exception->getMessage(),
+				'code' => $exception->getCode(),
+			);
+		}
+		if (($prev = $exception->getPrevious()) !== null) {
+			$array['previous'] = $this->toArrayRecursive($prev);
 		}
 		return $array;
 	}