Simple form - simple problem ???

BigJon2001

i have a php page with a simple html form on it.

one line requests the users date-of-birth...

<td nowrap="nowrap">DateOfBirth(yyyy-mm-dd)</td>
<td><input name="dateofbirth" type="text" value="1950-12-31" size="10" maxlength="10" />

but i have changed the form to display dropdowns...

<td><select name="mydobday" id="mydobday">
<option value="01">01</option>......................
<td><select name="mydobmth" id="mydobmth">
<option value="01">01</option>......................
<td><select name="mydobyr" id="mydobyr">
<option value="1940" selected="selected">1940</option>
<option value="1941">1941 </option>.............

so now i need two lines like......
<php $dateofbirth=$mydobyr."-".$mydobmth."-".$mydobday; ?>
<td><input name="dateofbirth" type="hidden" id="dateofbirth" value="<?php echo $dateofbirth; ?>" /></td>

But obviously (to you) this will not work.
So the question is: How do i make it work - i cannot find the answer anywhere... (PLEASEEEEEEEE)

stolzyboy

is register_globals Off on your server, if so use this:

<? $dateofbirth = $_POST['mydobyr'] . "-" . $_POST['$mydobmth'] . "-" . $_POST['$mydobday']; ?>

BigJon2001

i tried your code in <?php... ?> at the top of the page
i tried it as a line between the dropdowns & the hidden-input
i tried placing it in the hidden fields value=...

None of these worked.

Any other suggestions ???????

stolzyboy

can you echo them out separately on the php page, btw is your register_globals off

BigJon2001

globals are off
all values are sent straight to a database (field types are set to Varchar for now - i hope to use Date if i ever get this working)

Using this line...........
<td><input name="dateofbirth" type="hidden" id="dateofbirth" value="<?php $POST['mydobyr'] . "-" . $POST['$mydobmth'] . "-" . $_POST['$mydobday']; ?>" /></td>

Then Yes - they do "echo" out onto the "submit" page
(hope this helps)

stolzyboy

well if they are echoing out, what is the problem, i think you are confusing me

BigJon2001

they echo out seperately
<p><?php echo $dateofbirth; ?></p>

<p><?php echo $mydobday; ?></p> eg. 20
<p><?php echo $mydobmth; ?></p> eg. 10
<p><?php echo $mydobyr; ?></p> eg. 1966

but $dateofbirth is blank
and this is what i need to send to the database

I've just tried this..................................
adding this line to the PHP at the top of the page....
$dateofbirth = $POST['mydobyr'] . "-" . $POST['$mydobmth'] . "-" . $_POST['$mydobday'];

and changing the "input" to....
<input name="dateofbirth" type="hidden" id="dateofbirth" value="<?php echo $dateofbirth; ?>" />

So now i get...
-- (this is the line of interest. I want 1966-10-20)
20
10
1966

stolzyboy

well if you can simply do

echo $month; //i know these aren't correct names
echo $year;
echo $day;

then

$dob = $year . "-" . $month . "-" $day;

is the way to do it, you could also try

$dob = "$year-$month-$day";

either should work, if you say you can echo them separately

BigJon2001

and just where would i put this code ?
in the <Input Name...Value="<? dob$="
Or before the form...
<? dob$=... ?>
<form action...>

I've already tried all this & it doesn't work (see above)
Thanks anyway.

Anybody else know how to do this - it seemed such a basic idea

Recap:
I had a form with...
<td>DateOfBirth(yyyy-mm-dd)</td>
<td><input name="dateofbirth"/> ......bla bla This works...
Now i have dropdowns and a hidden field...
<td><select name="mydobday"><option>01</option>
<td><select name="mydobmth"><option>01</option>
<td><select name="mydobyr"<option>1941 </option>
<input name="dateofbirth" type="hidden" value="<?php echo $dateofbirth; ?>" />

So the question remains - how do i get the users input into variable $dateofbirth - OR how to i get the users input to be sent on in the same format as the original method.

stolzyboy

oh, you have the select and the hidden field in the same part of the form

BuzzLY

Don't use PHP. PHP is a server-side script that will not do anything once the page is loaded on the client's browser.

You need to use the onChange javascript event for each of your date input fields, and have it change the hidden field's value whenever any of the date fields are changed.

Or, modify the form you are posting to to accept the individual date elements and combine them there.

BigJon2001

Thaxs a lot - i mean it.
That's the best advice i've had all day - i'll look into it.