Hi, i'm reading a book about PHP and i was wondering why regular expressions are so often used to check format of variables or emails while the function filter exists since version 5.2. What are the plus of regular expression while checking variable format ? thx. -- Alain ----------------------------------------------------------- Windows XP x64 SP2 PostgreSQL 8.3.5 / MS SQL server 2005 Apache 2.2.10 PHP 5.2.6 C# 2005-2008
