Re: Dynamic input fields in Form

Based on your description it could litterally be coded one of a hundred different ways. The way I would code a small problem like this is in a monolithic logical construct such as the if/else statement below. This allows you to be a little bit more careless how you construct the page. Another conditional statement can be put above or below the form to capture and perform whatever is needed on the $_POST["carmake"] array. <form method="POST" value="test.php"> <? if (isset($_POST['numcars']) && is_numeric($_POST['numcars'])) { for ($i=1; $i<=$_POST['numcars']; $i++) { echo "Car # $i <select name=\"carmake[]\"> <option selected value=''>-- Choose Car Make --</option> <option>Chrysler</option> <option>Chevy</option> <option>Dodge</option> <option>Ford</option> </select><br>"; } } else { echo "How many cars? <input type=\"text\" name=\"numcars\" value=\"\"><br>"; } ?> <input type="submit" value="SUBMIT"> </form> - Kevin ----- Original Message ----- From: "Frank Keessen" <fkeessen@planet.nl> To: "Jon Haworth" <jhaworth@witanjardine.co.uk>; <php-general@lists.php.net> Sent: Friday, February 07, 2003 10:54 AM Subject: Re: [PHP] Dynamic input fields in Form > Hi, > > Thanks for the answer; but there is nobody who can show me an example in > code??? > > Regards, > > Frank > ----- Original Message ----- > From: "Jon Haworth" <jhaworth@witanjardine.co.uk> > To: <fkeessen@planet.nl>; <php-general@lists.php.net> > Sent: Friday, February 07, 2003 1:45 PM > Subject: RE: [PHP] Dynamic input fields in Form > > > > Hi Frank, > > > > > I have a form where the user selects for example; how many cars > > > you have: 4. Then it most dynamicly create 4 input fields > > [...] > > > > Using only PHP, you'll have to make this a two-step process where page 1 > > collects the number of cars and posts to page 2, which generates the form > > accordingly. > > > > If is has to be done on the same page, you'll need to call a Javascript > > function every time the number of cars changes. That function will have to > > add or remove <input>s from the form depending on the number of cars > > entered, and of course the whole page will break completely for anyone > > without Javascript. > > > > I'd make it a two-step process myself, it's considerably more robust and > > offers considerably less room for problems (what happens if I claim I have > > five cars, fill out their details, and then change it to three cars? which > > details do you get rid of?) > > > > Cheers > > Jon > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >