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Re: Rejecting Certain Non-ASCII Characters

From Jerry Stuckle <jstucklex@attglobal.net>
Newsgroups comp.lang.php
Subject Re: Rejecting Certain Non-ASCII Characters
Date 2013-04-19 18:00 -0400
Organization A noiseless patient Spider
Message-ID <kksekl$k8$3@dont-email.me> (permalink)
References <qfq2n85a3pb4eegtf7buji0o8ern0r838m@4ax.com> <kkrsb6$lec$1@dont-email.me> <cbe3n85j0ohhq7b0habll8rr60erkjgthp@4ax.com>

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On 4/19/2013 5:46 PM, Jim Higgins wrote:
> On Fri, 19 Apr 2013 12:48:14 -0400, in <kkrsb6$lec$1@dont-email.me>,
> Jerry Stuckle <jstucklex@attglobal.net> wrote:
>
>> On 4/19/2013 12:16 PM, Jim Higgins wrote:
>>>
>>> I have a problem with people entering a slashed zero vs a standard
>>> ASCII zero into HTML forms intended to store data in a MySQL database.
>>>
>>> Is there a simple way in PHP to restrict input to the ASCII Character
>>> set, specifically hex 0x20 - 0x7E ?  Or a simple way to detect
>>> characters outside this range before committing them to the database?
>>>
>>> My mind says it should be easy to detect and that I should be able to
>>> do it myself, but for some reason I'm drawing a huge blank.
>>>
>>> Thank you.
>>>
>>
>> Short of parsing the string some way, no.
>>
>> If it's a short string, you could loop through it character by
>> character.  Longer strings might benefit from a regex.
>
>
> The strings are very short, 1 - 7 characters.
>
>> But be aware just because YOU are working with an ASCII charset, not
>> everyone is.
>
> I'm not looking for worldwide compatibility.  My primary concern is
> with the annoying affectation a few users have of using a slashed zero
> in place of a just plain zero.  None are using a non-ASCII character
> set otherwise.
>

I understand - but YOU have to be aware that people ARE using different 
charsets, and handle it according to what YOUR needs are.

-- 
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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Thread

Rejecting Certain Non-ASCII Characters Jim Higgins <ILikeMy@Privacy.bogus> - 2013-04-19 16:16 +0000
  Re: Rejecting Certain Non-ASCII Characters Lew Pitcher <lpitcher@teksavvy.com> - 2013-04-19 12:29 -0400
  Re: Rejecting Certain Non-ASCII Characters Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-04-19 09:30 -0700
    Re: Rejecting Certain Non-ASCII Characters Jim Higgins <ILikeMy@Privacy.bogus> - 2013-04-19 21:38 +0000
      Re: Rejecting Certain Non-ASCII Characters Jim Higgins <ILikeMy@Privacy.bogus> - 2013-04-19 22:11 +0000
  Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-19 12:48 -0400
    Re: Rejecting Certain Non-ASCII Characters Jim Higgins <ILikeMy@Privacy.bogus> - 2013-04-19 21:46 +0000
      Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-19 18:00 -0400
      Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 01:23 +0200
  Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-19 19:38 +0200
    Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-19 22:33 +0200
      Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-19 23:08 +0200
        Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 01:12 +0200
          Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-22 13:25 +0200
            Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-22 13:29 +0200
        Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 14:08 +0200
          Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 17:52 +0200
    Re: Rejecting Certain Non-ASCII Characters Jim Higgins <ILikeMy@Privacy.bogus> - 2013-04-19 22:06 +0000
      Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-20 00:26 +0200
        Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-19 19:53 -0400
          Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-20 02:36 +0200
            Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-19 20:58 -0400
              Re: Rejecting Certain Non-ASCII Characters Christoph Becker <cmbecker69@gmx.de> - 2013-04-20 03:34 +0200
  Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-19 22:19 +0200
  Re: Rejecting Certain Non-ASCII Characters "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2013-04-20 10:04 +0200
    Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 14:15 +0200
      Re: Rejecting Certain Non-ASCII Characters "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2013-04-20 14:26 +0200
        Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 14:34 +0200
        Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-20 14:41 +0200
          Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-20 08:43 -0400
            Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-20 14:55 +0200
              Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-20 09:04 -0400
                Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-20 21:29 +0200
                Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-20 20:03 -0400
                Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-21 06:51 +0200
                Re: Rejecting Certain Non-ASCII Characters Arno Welzel <usenet@arnowelzel.de> - 2013-04-21 06:57 +0200
                Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-21 08:45 -0400
                Re: Rejecting Certain Non-ASCII Characters Tim Streater <timstreater@greenbee.net> - 2013-04-21 15:09 +0100
                Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-21 10:29 -0400
                Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-21 08:44 -0400
              Re: Rejecting Certain Non-ASCII Characters The Natural Philosopher <tnp@invalid.invalid> - 2013-04-20 15:07 +0100
                Re: Rejecting Certain Non-ASCII Characters Jerry Stuckle <jstucklex@attglobal.net> - 2013-04-20 20:06 -0400
          Re: Rejecting Certain Non-ASCII Characters "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2013-04-20 17:43 +0200
            Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 18:01 +0200
              Re: Rejecting Certain Non-ASCII Characters "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2013-04-20 18:17 +0200
                Address munging (was: Rejecting Certain Non-ASCII Characters) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-20 18:23 +0200
            OT: Address munging (was: Re: Rejecting Certain Non-ASCII Characters) Arno Welzel <usenet@arnowelzel.de> - 2013-04-20 21:25 +0200
            Re: Rejecting Certain Non-ASCII Characters Denis McMahon <denismfmcmahon@gmail.com> - 2013-04-20 22:06 +0000
              Re: Rejecting Certain Non-ASCII Characters Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-04-22 14:10 +0200

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