diff --git a/search2/search/expr.inc.php b/search2/search/expr.inc.php
index 3d94700..73d07ad 100755
--- a/search2/search/expr.inc.php
+++ b/search2/search/expr.inc.php
@@ -2317,9 +2317,12 @@ class OpExpr extends Expr
 		}
 
 		$permResults = array();
-		foreach($result[$resultContext] as $idx=>$item)
+		if(isset($result[$resultContext]))
 		{
-			$permResults[$resultContext][$idx] = $item;
+    		foreach($result[$resultContext] as $idx=>$item)
+    		{
+    			$permResults[$resultContext][$idx] = $item;
+    		}
 		}
 
 		return $permResults;
diff --git a/search2/search/fields/FullPathField.inc.php b/search2/search/fields/FullPathField.inc.php
index b758b06..4cc5437 100644
--- a/search2/search/fields/FullPathField.inc.php
+++ b/search2/search/fields/FullPathField.inc.php
@@ -61,7 +61,7 @@ class FullPathField extends DBFieldExpr
         }
     }
 
-    public function appliesToContext($context)
+    public function appliesToContext()
     {
         return ExprContext::DOCUMENT | ExprContext::FOLDER;
     }
diff --git a/search2/search/search.inc.php b/search2/search/search.inc.php
index f9a6e44..de70da0 100755
--- a/search2/search/search.inc.php
+++ b/search2/search/search.inc.php
@@ -570,6 +570,11 @@ function processSearchExpression($query)
 
     		$rs = $expr->evaluate(ExprContext::DOCUMENT);
     		$rs = $rs['docs'];
+
+    		if(empty($rs)){
+    		    return array();
+    		}
+
     		usort($rs, 'rank_compare');
 
     		$results = array();