javascript - Dynamic drop down using PHP JQuery and JSON -

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i trying create dynamic drop down menu using data parsed json file , stored in array in php. trying use jquery data not know going wrong.

    <?php require './index.php'; ?> <!doctype html><head><meta charset='utf-8'>      <title>dropdown</title>     <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>     <script>         $(function() {         alert('<?php echo$city_list; ?>');             $("#json-one").change(function() {              var $dropdown = $(this);                  $.getjson("demo2.php", function(data) {                      var key = $dropdown.val();                     var vals = [];                     switch(key) {                         case '<?php echo $city_list;?>':                             vals = data.split(",");                             break;}                     var $jsontwo = $("#json-two");                     $jsontwo.empty();                     $.each(vals, function(index, value) {                         $jsontwo.append("<option>" + value + "</option>");                     });});});});     </script></head><body>     <div id="page-wrap">             <h1>pulls json</h1>         <select id="json-one">             <option selected value="base">please select</option>             <option value="id1"><?php echo $city_list;?></option>                 </select>             <br />             <select id="json-two">             <option>please choose above</option>         </select>         </div></body></html>

i got data $city_list contains 1 value @ present.

array.php

<?php require 'index.php'; header('content-type: application/json'); echo json_encode($list);

output of [["hil",[125,139]],["mer",[52,52]]]. planning when select city dropdown box above hil , mer second dropdown should created. , if select of corresponding values should displayed.

any on appreciated.

create dom elements additional dropdown in html markup (i.e select , containers), hide them default add select options (via jquery) based on first choice, unhide elements.


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