PDOStatement::debugDumpParams() returns null (bug #64839)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330278 c90b9560-bf6c-de11-be94-00142212c4b1
Fix typo in example (bug #64599)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330279 c90b9560-bf6c-de11-be94-00142212c4b1