Currently I using the following code to get my JSON output from MySQL.

<?php


$session = mysql_connect('localhost','name','pass'); 

mysql_select_db('dbname', $session); 


    $result= mysql_query('SELECT message FROM posts', $session); 
 $somethings = array();  
 while ($row = mysql_fetch_assoc($result)) {  
    $somethings[] = $row; 
 } 

?> 

<script type="text/javascript"> 
    var somethings= <?php echo json_encode($somethings); ?>; 
</script> 

And the output is:

<script type="text/javascript"> 
    var somethings= [{"message":"Welcome to Yo~ :)"},{"message":"Try iPhone post!"},{"message":"????"}]; 
</script>

Here is the question, how can I change my output into format like :

<script type="text/javascript"> 
userAge = new Array('21','36','20'),
userMid = new Array('liuple','anhu','jacksen');
</script>

Which I'll be using later with following code :

 var html = '
<table class="map-overlay">
  <tr>
    <td class="user">' +
      '<a class="username" href="/' + **userMid[index]** + '" target="_blank"><img alt="" src="' +
        getAvatar(signImgList[index], '72x72') +
        '"></a><br>
      <a class="username" href="/' + **userMid[index]** + '" target="_blank">' +
      userNameList[index] +
      '</a><br>
      <span class="info">' + **userSex[index]** + ' ' + **userAge[index]** + '?<br>
      ' +
      cityList[index] +
      '</span>' +
      '</td>
    <td class="content">' + picString
      + somethings[index] + '<br>
      <span class="time">' +
      timeList[index] + picTips +
      '</span></td>
  </tr>
</table>
'; 

Thanks for helping and reading!