> -----Original Message----- > From: IMEX Research [mailto:jeremy.white@xxxxxxxxxxxxxxxx] > Sent: Tuesday, May 17, 2005 2:49 AM > To: php-general@xxxxxxxxxxxxx > Subject: PHP Phone Number Validation > > OK, I know this has probably gone aruond the list a few times, but how do > I validate a phone number that is in the format ddd-ddd-dddd ?? I can't > figure out how. With regular expressions: http://dk.php.net/manual/en/function.ereg.php http://dk.php.net/manual/en/function.preg-match.php I expect You wanna match 555-666-0606? (Angelina Jolies number ;-) This will match the number from start to end: ^[0-9]{3}-[0-9]{3}-[0-9]{5}$ ^ means the start of the string $ means the end of the string [0-9] means any number from 0 to 9 {3} means _exactly_ 3 occurences, no more no less (can also be {2,4} if You world allow from 2 to 4 occurences or {2,} if You want at least 2 digits) So this line says _start_ with 3 digits followed by a - then 3 digits, then another - and end with 4 digits Example: $number = "555-666-0606"; if(ereg("^[0-9]{3}-[0-9]{3}-[0-9]{4}$", $number)) { echo "valid phonenumber"; } else { echo "invalid phonenumber"; } -- Med venlig hilsen / best regards ComX Networks A/S Kim Madsen Systemudvikler/Systemdeveloper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
