note 120193 added to dba.example

I believe that Example #2 should have while ($key !== false) rather than while ($key != false) to allow for a key having a value equivalent to "false". ---- Server IP: 72.52.91.14 Probable Submitter: 51.9.131.24 ---- Manual Page -- http://php.net/manual/en/dba.example.php Edit -- https://master.php.net/note/edit/120193 Del: integrated -- https://master.php.net/note/delete/120193/integrated Del: useless -- https://master.php.net/note/delete/120193/useless Del: bad code -- https://master.php.net/note/delete/120193/bad+code Del: spam -- https://master.php.net/note/delete/120193/spam Del: non-english -- https://master.php.net/note/delete/120193/non-english Del: in docs -- https://master.php.net/note/delete/120193/in+docs Del: other reasons-- https://master.php.net/note/delete/120193 Reject -- https://master.php.net/note/reject/120193 Search -- https://master.php.net/manage/user-notes.php