controller

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Welcome extends CI_Controller {

	function __construct()
	{
		parent::__construct();
		$this->load->helper(array('url'));
		$this->load->model('modvsiswa');
		$this->load->database();
	}

	public function index()
	{
		$this->load->view('welcome_message');
	}
	public function autocomplete(){

	$this->load->model('modvsiswa');
	$q = $_REQUEST['term'];
	$cn = new modvsiswa();
	$data = $cn->siswaPerpusUnregister($q);
	$count = count($data);
	$jumlah = 0;
	$jumlah = ($count > 0 ? " : ");
	$response = array();
	foreach ($data as $val => $r){
	array_push($response, array("id"=>$r['nis'],
	"label"=>$r['nis']." = ".$r['nama'],"value"=>$r['nis']));
	}
	echo json_encode($response);
}
}