tkm76

I just tested it. It works flawlessly. Thank you!

Hi everybody! I'm having a bit of a problem with preg_match. I've spent two days on this, tried dozens of ways, nothing worked. So I decided to join this forum. OK, my problem is in these lines of code: if (!preg_match("/^[a-zA-Z0-9_\-\.]*$/", $username)){ echo "Username contains excluded characters!"; exit; } I'm making a registration form, and I want to allow following types of registration: "john_doe", "john-doe" and "john.doe". Besides "johndoe". Case sensitivity and numbers are also included. Everything other than that should be considered as excluded. I somehow managed to register two dummy records as it is. But after that it started giving me that echo message" Username contains excluded characters!" if i DON'T user those three special characters as well! And that shouldn't be a condition, but an option. How do I solve this problem? I would be grateful if someone would correct me in whatever I'm doing wrong. Thanks in advance! T.K.M.