JSFiddle - React, Tailwind, and code Playground

HTML

<?php echo form_open('admin/index','class="form-inline"');  ?>
  <input id='admin_auto_search' type="text" class="span3" placeholder="Search..">
  <select class="span2"  name="search_column" id="search_column">
  	<option value="username">Username</option>
    <option value="id">Table ID</option>
    <option value="request_id" >Request Id</option>
    <option value="created_on">Created On</option>
    <option value="first_name">First Name</option>
    <option value="last_name">Last Name</option>
    <option value="domain_name">Domain Name</option>
    <option value="company">Company</option>
    <option value="status">Status</option>
    <option value="timezone">Time Zone</option>
    <option value="plan">Plan</option>
    <option value="image">Button Image</option>
  </select>
  <input type="submit" class="btn  btn-primary" value="Search" />
<?php echo form_close();?>

JavaScript

$(function(){
		var url="<?php echo base_url('index.php/admin/home/auto_complete');?>";	
		var column=$('#search_column').val();
		
		$('#search_column').change(function(){
			column= $(this).val();
		});
	$("#admin_auto_search").autocomplete({
		source: url+"?search_column="+column
	});
});