When I try to use preg_match(), I get this... Fatal error: Call to undefined function preg_match() in /usr/home/www/library/defines.php on line 25 I have php5.0.4 ,web server Apache (Linux) . as I can solve it? Thanks, Denyl. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php