Re: Validating form input data

Manuel Lemos wrote:
> Hello,
>
> on 04/30/2006 09:38 AM stathis gotsis said the following:
>
>>Hello everyone,
>>
>>I am tying to come up with an elegant way to process some input data that
>>come from a form. When the user hits the 'Submit' button, i want the form to
>>appear again with the already entered valid data filled in and prompt the
>>user to re-enter the non-valid data. If all data is valid, i will forward to
>>an other .php page which enters the data into a database.
>>
>>I tried to do this in the following way: the form always hits back on
>>itself, but when all data is valid i use the PHP:header() to redirect to the
>>data.php that performs the database insertion. The problem is that the data
>>is not available to data.php in the $_POST variable. How can i overcome this
>>problem? Any other subtle way to handle the whole thing? Any help
>>appreciated.
>
>
> Nothing stops you from presenting the form and process it with the same
> script.
>
> You may want to take a look at this forms generation and validation
> class that shows you how to do that. Additionally it generates your
> forms with Javascript to validate the form also on the client site,
> avoiding unnecessary server round trips just to tell the user the form
> has invalid fields.
>
> http://www.phpclasses.org/formsgeneration
>
>

And what happens if someone has javascript turned off?

NEVER rely on client side validation!

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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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