Select only the id of text box - php

Question

I want to select only the id of textbox after that to insert into database..For example I have echo $t['id'] echo $t['name'] but I want select only the id. Is there any solution?I want to get from li elements only the $t['id'] after that to insert into database...If I write only $t['id'] I can insert into database but If I write $t['id']-$t['name'] I get an error...So I need to get only the $t['id'] from text box
HTML:
<input type="text" name="dropdiv" id="dropdiv" style="width:605" />
<div id="dragdiv">
<ul id="allItems">
<?php if($tags): ?>
<?php foreach($tags as $t): ?>
<li id="node" runat="server" value="$t['id']">
<?php echo $t['id']?><?php echo $t['name'] ?>
</li>
<?php endforeach; ?>
<?php endif; ?>
</ul>
</div>
<br />
JQuery:
<script type="text/javascript">
$(function() {
$("#dragdiv li").draggable({
helper: "clone",
cursor: "move",
revert: "invalid"
});
initDroppable($("#dropdiv"));
function initDroppable($elements) {
$elements.droppable({
activeClass: "ui-state-default",
hoverClass: "ui-drop-hover",
accept: ":not(.ui-sortable-helper)",
over: function (event, ui) {
var $this = $(this);
},
drop: function (event, ui) {
var $this = $(this);
if ($this.val() == '') {
$this.val(ui.draggable.text().trim());
ui.draggable.remove();
} else {
$this.val($this.val() + " " + ui.draggable.text().trim());
ui.draggable.remove();
}
}
});
}
});
</script>
CodeIgniter
$tags = $this->input->post('dropdiv');
$theid = $this->db->insert_id();
$tags_arr = array();
$theid = $this->db->insert_id();
$tags_arr = explode(' ',$tags);
foreach ($tags_arr as $t)
{
$tag_SQL = $t;
$this->db->query("insert into tags_in_news (news_id, tag_id) values ('{$theid}','{$tag_SQL}')");
}
Help me please guys...

Answer 1

I see only one textbox in your code. So, just do:
$("#dropdiv").method();
Read more about jQuery selectors here: http://api.jquery.com/category/selectors/

Answer 2

I think I'm slowly starting to understand. Replace ui.draggable.text() with ui.draggable.attr('value'), because you're trying to get that. But even better, replace the value attribute with a data-id attribute in your html (this way it's correct html).
html:
<li id="node" runat="server" data-id="$t['id']">
js:
if ($this.val() == '') {
$this.val(ui.draggable.attr('data-id').trim());
ui.draggable.remove();
} else {
$this.val($this.val() + " " + ui.draggable.attr('data-id').trim());
ui.draggable.remove();
}