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How to do this? Form fill problem Moozie 05-08-2005
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Posted by Moozie on May 8, 2005, 6:35 am
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I have a form that people can fill out.

Link looks like:
http://www.myname.com/form.php
A regular form, nothing special.

Now I would like to fill out 1 field automatically by the link I give
people.
E.g. custommer number 14 will get a link from me like this one:
http://www.myname.com/form.php?number=14
Or something similar.

What I would like to know is: how to put that "number 14" included in
the link into the form. Or (even better) send it as a hidden field in
the form?

Is there maybe a cgi script or php script that does this job? Or a
piece of javascript maybe?

Any advice would be appreciated.

Thanks for reading!


Posted by kchayka on May 8, 2005, 9:01 am
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Moozie wrote:
>
> http://www.myname.com/form.php?number=14
>
> What I would like to know is: how to put that "number 14" included in
> the link into the form. Or (even better) send it as a hidden field in
> the form?

Just about everything you ever wanted to know about php can be found at
php.net. For this particular topic, see:
<URL:http://us4.php.net/manual/en/language.variables.external.php>

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Posted by David Dorward on May 8, 2005, 3:06 pm
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Moozie wrote:

> Now I would like to fill out 1 field automatically by the link I give
> people.
> E.g. custommer number 14 will get a link from me like this one:
> http://www.myname.com/form.php?number=14

> What I would like to know is: how to put that "number 14" included in
> the link into the form. Or (even better) send it as a hidden field in
> the form?

> Is there maybe a cgi script or php script that does this job?

Trival in any server side language.

Perl CGI for example:

use CGI;
my $cgi = CGI->new();
my $value = $cgi->param('number');
$value = 0 unless (defined $value); # Set a default
# Only allow numbers to protect against x-site scripting attacks
$value = 0 unless (int($value) eq $value);
print qq(<input type="hidden" name="number" value="$number">);

--
David Dorward <http://blog.dorward.me.uk/> <http://dorward.me.uk/>
Home is where the ~/.bashrc is


Posted by Moozie on May 9, 2005, 6:23 pm
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Thanks. I tested your code. I made a cgi file called form.cgi and put
your code in. I entered a link in browser to thast cgi script. And
tested with the addition: http://www.mydomain.com/form.cgi?number=14

I thought I would get a page with only the hidden code in it. Nut I
got an server-error.

Error message:
Bad header=<input type="hidden" name = "num....

The content of the whole cgi file:
> use CGI;
> my $cgi = CGI->new();
> my $value = $cgi->param('number');
> $value = 0 unless (defined $value); # Set a default
> # Only allow numbers to protect against x-site scripting attacks
> $value = 0 unless (int($value) eq $value);
> print qq(<input type="hidden" name="number" value="$number">);

Is there a mistake?

Thanks

I am rather new on cgi, so please forgive me some nembie mistakes...

Posted by Trammel on May 11, 2005, 7:13 am
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[snip]
> I am rather new on cgi, so please forgive me some nembie mistakes...

Not helpful of me but I thought I should point out that its spelt
"newbie"...
...learn the basics like that and the code should just fall in place (With
help from someone who knows how to do what you want done ;¬)



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