RE: [PHP] Re: newbie:restricting users to change data in a textar ea
| From: | Jon Haworth | Date: | Tue, 18 Mar 2003 10:42:48 +0000 |
| Subject: | RE: [PHP] Re: newbie:restricting users to change data in a textar ea | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-140100@lists.php.net to get a copy of this message | ||
Hi Coert,
> > There is one field that I whant to stop them from changing
>
> You can put READONLY in your TEXTAREA tag
While this would probably keep the honest people honest (assuming it's
supported across all browsers), it won't stop anyone who wants to pollute
the database. What's to stop me making my own version of your form, without
READONLY, and submitting that?
If the OP doesn't want users to change the data in the field, he/she should
either display it so it's non-editable (i.e. in a <p>, or something), or
simply ignore any changes users make to it.
As a rule of thumb, *never* *ever* trust data that has left your server and
then come back, regardless of whether it's in a readonly textarea, a hidden
field, a cookie, whatever. Good programmers look both ways before crossing
one-way streets.
Cheers
Jon