diff --git a/system/core/Input.php b/system/core/Input.php
index 11b2e94..d1353e9 100644
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -156,8 +156,13 @@
 	 */
 	protected function _fetch_from_array(&$array, $index = NULL, $xss_clean = NULL)
 	{
+		is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
 		// If $index is NULL, it means that the whole $array is requested
-		if ($index === NULL)
+		isset($index) OR $index = array_keys($array);
+
+		// allow fetching multiple keys at once
+		if (is_array($index))
 		{
 			$output = array();
 			foreach (array_keys($array) as $key)
@@ -168,20 +173,6 @@
 			return $output;
 		}
 
-		// allow fetching multiple keys at once
-		if (is_array($index))
-		{
-			$output = array();
-			foreach ($index as $var)
-			{
-				$output[$var] = $this->_fetch_from_array($array, $var, $xss_clean);
-			}
-
-			return $output;
-		}
-
-		is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
-
 		if (isset($array[$index]))
 		{
 			$value = $array[$index];