Re: regexp question

how about ereg("[^-A-Za-z0-9_]",$blah); put the dash first, so the character class knows you aren't spanning characters (being last probably worked, too, but Mastering Regular Expressions says put it first). I don't know that you need to start with ^ and end with $, as you are looking for anything that isn't A-Z, a-z, 0-9 or - or _. The + at the end probably isn't necessary, either. Hans On Fri, 11 Aug 2000, Ryan J Nichols wrote: > can I get a regexp that verifies a string is only 0-9 a-z A-Z or contains _ and - > > ereg("^[^A-Za-z0-9\d_-]+$",$bah) > does not work. > > I've been toying with this for a while with no success, in addition to the answer a nice > url to a tutorial on these things would be appreciated. > > Thanks in advance, > > Ryan > > Hans Anderson ~ me@hansanderson.com PO Box 426, Missoula, MT 59806 | PHP, Search Engines, SQL (800)397-9116 / (406)549-6524 | Databases, Flash Multimedia, http://www.hansanderson.com | Killer Audio Production, http://www.goofiness.com | Minty Fresh Breath.