diff --git a/dibi/dibi.php b/dibi/dibi.php
index bdfef492..2f5a3af0 100644
--- a/dibi/dibi.php
+++ b/dibi/dibi.php
@@ -204,8 +204,8 @@ class dibi
 
 	/**
 	 * Creates a new DibiConnection object and connects it to specified database.
-	 * @param  array|string|ArrayObject connection parameters
-	 * @param  string       connection name
+	 * @param  mixed   connection parameters
+	 * @param  string  connection name
 	 * @return DibiConnection
 	 * @throws DibiException
 	 */
diff --git a/dibi/libs/DibiConnection.php b/dibi/libs/DibiConnection.php
index f0409e51..a7225c5f 100644
--- a/dibi/libs/DibiConnection.php
+++ b/dibi/libs/DibiConnection.php
@@ -44,8 +44,8 @@ class DibiConnection extends DibiObject
 
 	/**
 	 * Creates object and (optionally) connects to a database.
-	 * @param  array|string|ArrayObject connection parameters
-	 * @param  string       connection name
+	 * @param  mixed   connection parameters
+	 * @param  string  connection name
 	 * @throws DibiException
 	 */
 	public function __construct($config, $name = NULL)
@@ -58,7 +58,7 @@ class DibiConnection extends DibiObject
 			$config = iterator_to_array($config);
 
 		} elseif (!is_array($config)) {
-			throw new InvalidArgumentException('Configuration must be array, string or ArrayObject.');
+			throw new InvalidArgumentException('Configuration must be array, string or object.');
 		}
 
 		self::alias($config, 'username', 'user');
@@ -553,8 +553,8 @@ class DibiConnection extends DibiObject
 	 */
 	public function update($table, $args)
 	{
-		if (!(is_array($args) || $args instanceof ArrayObject)) {
-			throw new InvalidArgumentException('Arguments must be array or ArrayObject.');
+		if (!(is_array($args) || $args instanceof Traversable)) {
+			throw new InvalidArgumentException('Arguments must be array or Traversable.');
 		}
 		return $this->command()->update('%n', $table)->set($args);
 	}
@@ -568,10 +568,10 @@ class DibiConnection extends DibiObject
 	 */
 	public function insert($table, $args)
 	{
-		if ($args instanceof ArrayObject) {
-			$args = (array) $args;
+		if ($args instanceof Traversable) {
+			$args = iterator_to_array($args);
 		} elseif (!is_array($args)) {
-			throw new InvalidArgumentException('Arguments must be array or ArrayObject.');
+			throw new InvalidArgumentException('Arguments must be array or Traversable.');
 		}
 		return $this->command()->insert()
 			->into('%n', $table, '(%n)', array_keys($args))->values('%l', $args);
diff --git a/dibi/libs/DibiFluent.php b/dibi/libs/DibiFluent.php
index 18742b23..f768be30 100644
--- a/dibi/libs/DibiFluent.php
+++ b/dibi/libs/DibiFluent.php
@@ -132,7 +132,7 @@ class DibiFluent extends DibiObject implements IDataSource
 			} elseif ($arg instanceof self) {
 				$args = array_merge(array('('), $arg->_export(), array(')'));
 
-			} elseif (is_array($arg) || $arg instanceof ArrayObject) { // any array
+			} elseif (is_array($arg) || $arg instanceof Traversable) { // any array
 				if (isset(self::$modifiers[$clause])) {
 					$args = array(self::$modifiers[$clause], $arg);
 
diff --git a/dibi/libs/DibiTranslator.php b/dibi/libs/DibiTranslator.php
index 2ee94283..67ff3d9a 100644
--- a/dibi/libs/DibiTranslator.php
+++ b/dibi/libs/DibiTranslator.php
@@ -134,8 +134,8 @@ final class DibiTranslator extends DibiObject
 				continue;
 			}
 
-			if ($arg instanceof ArrayObject) {
-				$arg = (array) $arg;
+			if ($arg instanceof Traversable) {
+				$arg = iterator_to_array($arg);
 			}
 
 			if (is_array($arg)) {
@@ -192,8 +192,8 @@ final class DibiTranslator extends DibiObject
 	public function formatValue($value, $modifier)
 	{
 		// array processing (with or without modifier)
-		if ($value instanceof ArrayObject) {
-			$value = (array) $value;
+		if ($value instanceof Traversable) {
+			$value = iterator_to_array($value);
 		}
 
 		if (is_array($value)) {