Index: library/Zend/Filter/PregReplace.php
===================================================================
--- library/Zend/Filter/PregReplace.php	(revision 21072)
+++ library/Zend/Filter/PregReplace.php	(working copy)
@@ -89,18 +89,19 @@
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         } else if (!is_array($options)) {
-            $options       = func_get_args();
-            $temp['match'] = array_shift($options);
+            $options = func_get_args();
+            $temp    = array();
             if (!empty($options)) {
+            	$temp['match']   = array_shift($options);
                 $temp['replace'] = array_shift($options);
             }
             $options = $temp;
         }
-
+        
         if (array_key_exists('match', $options)) {
             $this->setMatchPattern($options['match']);
         }
-
+		
         if (array_key_exists('replace', $options)) {
             $this->setReplacement($options['replace']);
         }