php - Most straight forward way to retain selected dd option on form submission? -

i have webform has validation functions each field. when submit form, if fails validation, user brought form previous values in input fields , receives error text. working properly.

the 1 field not retain selected value/list of values dropdown gets options via ajax on change of dropdown.

i've read 1 option submit form via ajax i'd rather not go down path.

maybe function on click submit button?

ajax:

function fillsomelistdropdown(val){     $.ajax({        type: 'get',        url: 'ajax/somelist.php?q=' + val,        success: function(data){             $('#my-id option:not(:first)').remove();             $('#my-id').append(data);        }     }); } 

somelist.php

$q = $_get['q']; $response = sp_things_select_all($q);  // generate html foreach ($response $value) {     echo '<option class="option-input" value="' . $value['value'] . '">' . $value['value'] . '</option>'; } 

assign val variable before passing it.

function fillsomelistdropdown(val){ var val =val;     $.ajax({        type: 'get',        url: 'ajax/somelist.php?q=' + val,        success: function(data){             $('#my-id option:not(:first)').remove();             $('#my-id').append(data);        }     }); }