The + requires at least one character. The * is "0 or more" characters.
http://php.net/pcre On Wed, March 5, 2008 9:13 am, It Maq wrote: > Hi, > > I am using that right now and i have don't know how to include blank > fields. For example if a user does not fill a field in a form i want > to accept it. I tried the code you posted, for now it is blocking > blank fields. > > Thank you > > ----- Original Message ---- > From: Richard Lynch <[EMAIL PROTECTED]> > To: Adil Drissi <[EMAIL PROTECTED]> > Cc: php-general@lists.php.net > Sent: Tuesday, March 4, 2008 3:09:09 PM > Subject: Re: [PHP] regular expressions question > > On Tue, March 4, 2008 1:19 pm, Adil Drissi wrote: >> Is there any way to limit the user to a set of characters for >> example >> say i want my user to enter any character between a and z (case >> insensitive). And if the user enters just one letter not belonging >> to >> [a-z], this will not be accepted. >> >> I tried eregi('[a-z]', $fname) but this allows the user to enter >> abdg4512kdkdk for example. > > What you tried only requires ONE a-z character somewhere in the input. > > Try this: > > preg_match('^[a-z]+$', $fname); > > This will: > ^ "anchor" the string at the beginning > [a-z]+ a to z, with at least one letter > $ "anchor" the string at the end > > Note, however, that some people have other characters in their first > name, such as apostrophe, space, and dash. > > Oh, and the digit 3, for "bo3b" who was a programmer on the first > Apple Macintosh. His parents were hippies, and that really is his > name... > > You may want to obtain a LARGE list of "first names" and run them > through your validator as a test. > > -- > Some people have a "gift" link here. > Know what I want? > I want you to buy a CD from some indie artist. > http://cdbaby.com/from/lynch > Yeah, I get a buck. So? > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > > > ____________________________________________________________________________________ > Never miss a thing. Make Yahoo your home page. > http://www.yahoo.com/r/hs -- Some people have a "gift" link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
