Hi, user can enter a string with following format dd.mm.yyyy. Application should transform it to postgresql timestamp date. however, i would like to be sure that what user typed is a real and valid date. how can i do that ? i was thinking to use date(string format, strtotime(string_entered_by_user)); but it does not ensure me that it is a valid date... thx. -- Alain ------------------------------------ Windows XP SP2 PostgreSQL 8.1.4 Apache 2.0.58 PHP 5