bootstrap php pass parameters to popup modal

Question

I'm having problems with a popup modal box.

For some reason, the dialog box isn't displaying the text passed inside the <a> tag where data-soldusers=\"$soldUsersstr\". I am using base64_encode to encode the string which contains <select><option> html tag. And then passes it to a popup dialog using the bootstrap framework.

php file:

$soldUsersstr=base64_encode($soldUsersstr);

echo "<p><div class=\"user-ads-action\"><a class=\"btn btn-info btn-xs\"  data-toggle=\"modal\"   href=\"#markSoldAds\"   data-soldusers=\"$soldUsersstr\"  $str> <i class=\"fa fa-mail-forward\"></i>".$this->lang->line('MarkSold')." </a></div></p>";

modal php:

<div   id="divSoldUser" name="divSoldUser"  class="center">

</div>

<script>

$(document).ready(function() {
    $('#markSoldAds').on('show.bs.modal', function(event) {
        $("#postID").val($(event.relatedTarget).data('id'));
         $("#divSoldUser").html(jsbase64_decode($(event.relatedTarget).data('soldusers')));
    });
});
</script>