RE: [PHP] Forms with Field Arrays and JavaScript

[Diego Fulgueira]

After several tries, I am convinced there is no way to do it. I went around
the problem by using dinamic field names (var1, var2, var3, etc) and then
reading them using $HTTP_POST_VARS["var".$i], where $i would be your former
index to the array. For example:

The form coud have HTML code like this:

    <input type=text name=myvar0>
    <input type=text name=myvar1>
    <input type=text name=myvar2>

Each field can be referenced by JavaScript code like this:

    document.myform.myvar1.value="hello";

Or dynamically like this:

    myfield=new array();
    for(i=0;;i++)


        if(!eval("document.myform.myvar"+i)) break;
        myfield[i]=eval("document.myform.myvar"+i);
    }
    myfield[1].value="hello";

When the form is submitted, asuming, method=POST, then you get the field
values like this:

$myvars=array();
for($i=0;;$i++)
{
    if(empty($HTTP_POST_VARS["myvar".$i]) break;
    $myvars[$i]=$HTTP_POST_VARS["myvar".$i];
}

Hope it helps.
Cheers, Diego.
  -----Original Message-----
  From: Utopia [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, 01 May, 2001 10:32 PM
  To: [EMAIL PROTECTED]
  Subject: Re: [PHP] Forms with Field Arrays and JavaScript


  Hello,

  I see you sent this back in January. I'm having the very same problem.

  Could you PLLLLEEEAAASSEEE tell me how to assign a value to the
'myfields[]' text field using JavaScript. I can't make it happen.


  Thanks.

  Tiffany
  ----------------------------
  THIS WAS YOUR MESSAGE ON THE BOARD
  Hi! I was wondering if someone knows, or can think of a way to go around
  this problem i have.


  The thing is i am working with a form with a field array. Each field is
  something like:
  <input name="myfields[]" type="text">


  When i receive the posted data, I can access the "myfields" array. This is
  fine.


  The problem is within my form i have client JavaScript code to validate
the
  form data. But I can't make reference to a form object called myfields[]
or
  myfields[5] or just myfields. The property name of the javascript object
is
  set to "myfields[]", but reference to myfields[][5] or
  document.myform.fields["myfields[]"] doesn't work either.


  Any suggestions will be greatly appreciated.
  Thanks in advance.