辅助函数：application/helper下面。命名要求为***_helper.php;这样在调用的时候

直接$this->load->helper('***');

若想给自定义的辅助函数传参数：$config=函数名（）；

以辅助函数分页为例子：

page_helper.php

<?php

function page($link_url,$total_nums,$page_num){

$config['base_url'] =$link_url;

$config['total_rows'] = $total_nums;

$config['per_page'] = $page_num;

$config['full_tag_open'] = '<p>';

$config['full_tag_close'] = '</p>';

$config['first_link'] = '首页';

$config['first_tag_open'] = '<li>';

$config['first_tag_close'] = '</li>';

$config['last_link'] = '末页';

$config['last_tag_open'] = '<li>';

$config['last_tag_close'] = '</li>';

$config['next_link'] = '下一页';

$config['next_tag_open'] = '<li>';

$config['next_tag_close'] = '</li>';

$config['prev_link'] = '上一页';

$config['prev_tag_open'] = '<li>';

$config['prev_tag_close'] = '</li>';

$config['cur_tag_open'] = '<li class="current">';

$config['cur_tag_close'] = '</li>';

$config['num_tag_open'] = '<li>';

$config['num_tag_close'] = '</li>';

$config['uri_segment'] = 4;将分页数据传输位置改为4

return $config;

}

?>

在控制里面调用：

$page_num = '2';

//每页显示的数目

$this->load->model('Page_model');

$data= $this->Page_model->page('tx_news',$page_num,$this->uri->segment(4),$id);

//加载分页的控制器；

$total_nums=count($news);

$data['query']=$data[0];

$this->load->library('pagination');

$config=page($this->config->item('base_url')."/index.php/News/index/{$id}",$total_nums,$page_num);

$this->pagination->initialize($config);