RE: [PHP] Form Validation: Surnames with Apostrophe

When I do that: (preg_match("/^[a-z](\\')?[a-z-]+$/i",$_POST[Last_Name]) it won't allow O'Reilly and seems to not allow anything at all On Thu, 27 Mar 2003, Jennifer Goodie wrote: > That is because it is not saying that is all that can be in the string. The > 'Re' matches that pattern. Put a ^ at the beginning to signify it must > start with the pattern and a $ at the end to signify it must end there. > > -----Original Message----- > From: tpc@csua.berkeley.edu [mailto:tpc@csua.berkeley.edu] > Sent: Thursday, March 27, 2003 1:19 PM > To: John W. Holmes > Cc: 'John Nichel'; php-general@lists.php.net > Subject: RE: [PHP] Form Validation: Surnames with Apostrophe > > > > I just tried your regexp: > > (preg_match("/[a-z](\\')?[a-z-]+/i",$_POST[Last_Name]) > > and it allows the following: > > O' #$%@Re > > It seems to allow any number of characters and spaces between the O' and > Re > > On Wed, 12 Mar 2003, John W. Holmes wrote: > > > > > preg_match ( "/[A-Za-z-']+/", $_POST['Last_Name'] ); > > > > > > > > tpc@csua.berkeley.edu wrote: > > > > > I have been trying to validate a form field Last_Name and have > > been > > > unable > > > > > to find a regexp to account for the apostrophe (e.g., O'Reilly). > > The > > > > > following statement: > > > > > > > > > > preg_match('/^[[:alpha:]]+[-]?[[:alpha:]]+$/', $_POST[Last_Name]) > > > > > > > > > > accepts hyphenated surnames and I have tried escaping the > > apostrophe: > > > > > [\\'] and [\\\'] to no avail. Any idea what I am doing wrong? > > > that could work but the user may now submit one or more apostrophes > > > as the Last Name. > > > > Watch out for magic_quotes. If "O'Reilly" is submitted, unless you > > stripslash() it, you're validating against "O\'Relly". > > > > preg_match("/[a-z](\\')?[a-z-]+/i",$_POST['Last_Name']) > > > > ---John W. Holmes... > > > > PHP Architect - A monthly magazine for PHP Professionals. Get your copy > > today. http://www.phparch.com/ > > > > > > > >