Question

My form contains a radio-button & a drop-down. So depending upon the selected value of radio button i need to enable/disable the drop-down.

I am doing this:

<select name="bas_type" id="bas_type" disabled="disabled">
  <option value="Monthly">Monthly</option>
  <option value="Quarterly">Quarterly</option>
  <option value="Annualy">Annualy</option>
</select>

But i want to get drop-down value as empty in $_POST if form is disabled..
So this won’t work. Please any suggestions..

Answer 1

Simply add a hidden field with the value you want to receive when the control is disabled and the same name as the dropdown. Be sure to place it before the dropdown in the HTML:

<input type="hidden" name="bas_type" value="" />
<select name="bas_type" id="bas_type" disabled="disabled">
  <option value="Monthly">Monthly</option>
  <option value="Quarterly">Quarterly</option>
  <option value="Annualy">Annualy</option>
</select>

Of course you shouldn’t really have to do this, since in PHP you should be receiving incoming parameters with at least a helper function like

function param($name, $default = null) {
    return isset($_REQUEST[$name]) ? $_REQUEST[$name] : $default;
}