> 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.
That's not so long. > What are the plus of regular expression while checking variable format ? They' more versatile. Far more in the case of PCRE. -- Richard Heyes HTML5 Graphing for FF, Chrome, Opera and Safari: http://www.rgraph.org (Updated December 5th) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
