Ajax coding problems, online and other heroes help !!!

Ajax coding problems, online and other heroes help !!!

public function ajax_page(){//header('Content-Type:text/html;charset=gbk');error_reporting(E_ALL);$page = $this->input->post('pg');$where = $this->input->post('action');$array = explode('_',$where);$condition['group_id'] = $array[0];$condition['status'] = $array[1];$condition['username'] = @iconv( "UTF-8","GBK", $array[2]);echo $condition['username'];$condition['display'] = 15;$condition['page'] = ($page-1) * 15;$num = $this->member_model->Selcount($condition);        $url = base_url()."/index.php/admin/member_list/";$this->page->select = $where;        $this->page_model->page($num,"15",$page,$url);        $data['page'] = $this->page->pagenav;$data['user'] = $this->member_model->Selmember($condition);        $this->load->language('admin/member');        $data['lang'] = $this->lang->line('HtmlLanguages');   //print_r($data['user']);//exit;   $this->load->view('admin/member_list_ajax', $data);}