Fix guarding of MySQL's numRows()

[lhc/web/wiklou.git] / includes / libs / rdbms / database / IDatabase.php

diff --git a/includes/libs/rdbms/database/IDatabase.php b/includes/libs/rdbms/database/IDatabase.php
index f38ddb8..39fbbca 100644 (file)
--- a/includes/libs/rdbms/database/IDatabase.php
+++ b/includes/libs/rdbms/database/IDatabase.php
@@ -394,7 +394,8 @@ interface IDatabase {
        public function fetchRow( $res );
 
        /**
-        * Get the number of rows in a result object
+        * Get the number of rows in a query result. If the query did not return
+        * any rows (for example, if it was a write query), this returns zero.
         *
         * @param mixed $res A SQL result
         * @return int