--TEST-- PDO Common: assert that bindParam does not modify parameter --SKIPIF-- --FILE-- exec('create table test (id int, name varchar(10))'); $stmt = $db->prepare('insert into test (id, name) values(0, :name)'); $name = NULL; $before_bind = $name; $stmt->bindParam(':name', $name); if ($name !== $before_bind) { echo "bind: fail\n"; } else { echo "bind: success\n"; } var_dump($stmt->execute()); var_dump($db->query('select name from test where id=0')->fetchColumn()); ?> --EXPECT-- bind: success bool(true) NULL