form add field question

[jazzman]

Hi all!

I want to build a form in which there will be a button that allows to add an input field every time it is pressed. Can somebody please help me accomplish this?  ???

[Jessica]

You need to use javascript if you want it so the page doesn't refresh.

[jazzman]

Can someone please direct me to an explanation of how this can be done?

[severndigital]

initially i would do it like this.

 

1. pass a hidden field that contains the current total of form fields.

2. when the button is pressed, post the hidden field and add 1.

3. run a while loop to display the results and decrease the hidden field by 1 until it reaches zero.

 

4. don't forget to post and echo the current form information so the user doesn't have to re-input.

 

something like this which can probably be simplified, but to break it down I'll go through it.

 

<?
//get field
$totalfields = $_POST['hiddenfield'];
//add one
$add1 = $totalfields + 1;
//run while loop

while($add1 > 0){

       echo 'the form field data would go here. do not forget to echo the contents from the post.';
       $add1 = $add1 - 1 ;//subtract 1 from the total until it reaches zero

}
//echo the hidden field + 1 to get next time.
$hiddentotal = $totalfields + 1;
echo '<input name="totalfields" type="hidden" value="' . $hiddentotal . '">';
?>

 

this should keep you from having to use JavaScript, but it will refresh the page.