Recursively return previous exceptions in toArray().

framework/yii/base/Exception.php

@@ -29,23 +29,33 @@ class Exception extends \Exception implements Arrayable
 	 */
 	public function toArray()
 	{
+		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' => $this->getCode(),
 			);
-		if (($prev = $this->getPrevious()) !== null) {
-			if ($prev instanceof self) {
-				$array['previous'] = $prev->toArray();
 		} else {
-				$array['previous'] = array(
-					'type' => get_class($prev),
+			$array = array(
+				'type' => get_class($exception),
 				'name' => 'Exception',
-					'message' => $prev->getMessage(),
-					'code' => $prev->getCode(),
+				'message' => $exception->getMessage(),
+				'code' => $exception->getCode(),
 			);
 		}
+		if (($prev = $exception->getPrevious()) !== null) {
+			$array['previous'] = $this->toArrayRecursive($prev);
 		}
 		return $array;
 	}