Post Input Attribute (Not Value) to Thank You Page - php

Question

Is there a way to post attributes other than the value to another page?
For eg: If i have <option value="Bulgaria" data-key="BG" data-geo="EMEA">Bulgaria</option>
I know i can post the value and get it on the thank you page with $_POST,
but what if i wanted to get the data-key instead of the value?

Answer 1

$( "#myselect option:selected" ).data("key") or
$( "#myselect option:selected" ).attr("data-key")
But you need to send values via js insted of html form send

Answer 2

You can only post the value (unless you use AJAX and a bit of manipulation). If you go for the JavaScript route, this would be achieved with something like this:
$('form').submit(function(e) {
data = {};
url = '';
e.preventDefault();
$('input', this).each(function() {
var pcs = $(this).data();
var datakey = $(this).attr('data-key');
if (undefined == data[datakey]) {
data[datakey] = {};
data[datakey]['_'] = $(this).val();
}
$.each(pcs, function(k, v) {
data[datakey][k] = v;
});
});
$.ajax({
url: url,
data: data,
type: "POST"
}).done(function() {
// data-key successfully POSTed
});
});
The better question is why are you attempting to do this? If you only want an output of BG, use that as the value. If you want both Bulgaria and BG, you can make use of a hidden input to additionally send the secondary data (as a value):
<input type="hidden" name="shortcode" value="BG" />

Answer 3

Simple, you can try it:
HTML:
<form ... method="post" onsubmit="return form_check()">
<input type="hidden" name="data_key" id="data_key">
<input type="hidden" name="data_geo" id="data_geo">
...
<button type="submit">Submit</button>
</form>
jQuery:
function form_check() {
$('#data_key').val($('#myselect option:selected').data('key'));
$('#data_geo').val($('#myselect option:selected').data('geo'));
return true;
}
then in your PHP you'll receive them in $_POST['data_key'] and $_POST['data_geo'].