javascript - Give array elements individual IDs when taken from PHP file with AJAX -

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my index.php:

<html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> </head> <body>  <form name="form1" method="post">     <select id="dropdown1" name="country" onchange="window.getstates()">         <option> select country</option>         <option value="1">pakistan</option>         <option value="2">india</option>         <option value="3">usa</option>         <option value="4">uk</option>     </select>     <input type="text" id="area" style="display: none;" size="16" placeholder=" enter value"></input>     <input type="button" id="submit" style="display: none" name="submit" value="submit" onclick="submit2()"> </form>  <script type="text/javascript"> function show() {     document.getelementbyid('area').style.display = 'inline-block';     document.getelementbyid('submit').style.display = 'inline-block'; } function getstates() {     var xmlhttp;     try {         xmlhttp = new xmlhttprequest;     } catch(e) {         xmlhttp = new activexobject("microsoft.xmlhttp");     }     if (xmlhttp) {         var form = document['form1'];         var country = form['country'].value;          xmlhttp.open("get", "http://localhost/getstates.php?country="+country, true);         xmlhttp.onreadystatechange = function() {             if(this.readystate == 4) {                 var s = document.createelement("select");                 s.onchange = show;                 s.id = "dropdown2";                 s.name = "state";                 s.innerhtml = this.responsetext;                  if(form['state']) {                     form.replacechild(s, form['state']);                 } else                     form.insertbefore(s, form['submit']);             }         }         xmlhttp.send(null);     } }  function submit2() {     var table = document.getelementbyid("dropdown1").value;     var parameter = document.getelementbyid("dropdown2").value;     var value = document.getelementbyid("area").value;     $.ajaxsetup({         url: "http://localhost/database.php",         type: "post",     });     $.ajax({         data: 'table='+table+'&parameter='+parameter+'&value='+value,         success: function (msg) {             alert (msg);         },         error: function (xmlhttprequest, textstatus, errorthrown) {                alert('error submitting request.');          }     });  } </script> </body> </html>

getstates.php:

<?php $states = array(     "1" => array("parameter 1", "parameter 2", "parameter 3", "parameter 4", "select"),     "2" => array("parameter 1", "parameter 2", "parameter 3", "parameter 4", "select"),     "3" => array("parameter 1", "parameter 2", "parameter 3", "parameter 4", "select"),     "4" => array("parameter 1", "parameter 2", "parameter 3", "parameter 4", "select") );  if(isset($_get['country'])) {     $c = $_get['country'];     if(isset($states[$c])) {         for($i = count($states[$c]) -1; $i>=0; $i--) {             echo "<option value='".$states[$c][$i]."'>".$states[$c][$i]."</option>";         }     } } ?>

database.php:

<?php header('content-type: text/html; charset=iso-8859-1'); try {     if(isset($_post['table']) && isset($_post['parameter']) && isset($_post['value'])){         $table = ($_post['table']);         $parameter = ($_post['parameter']);         $value = ($_post['value']);         $db = mysql_connect("localhost", "root", "");         $select = mysql_select_db('records', $db);         $query = "insert `".$_post['table']."` (parameter,value) values ('".$_post['parameter']."','".$_post['value']."');";         mysql_query($query, $db);     } } catch(exception $e) {     echo 'erreur : '.$e->getmessage().'<br />';     echo 'n° : '.$e->getcode(); } ?>

what want able assign id each option in dropdown2 can send text input table. example, need first entry of second dropdown have id parameter 4, second have id parameter 3, third have id parameter 2 , fourth option have id parameter 1. how can in index.php itself?

solved:(edit)

find answer here: get selected value in dropdown list using javascript?


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