21

听到是我的代码

public function viewdeletedrecords()
{   

    if($this->session->userdata('applicant_firstname') == '')
    {
        redirect('papplicant/login') ;
    }
    $profile = $this->m_applicant->showdeletedrecods('','');                                                         
    $total_rows = count($profile) ;
    $config['base_url'] =  base_url().'index.php/papplicant/viewdeletedrecords/' ;
    $config['per_page'] = '10' ;
    $config['full_tag_open'] = '<div>' ;

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

    $config['first_link'] = 'First' ;

    $config['last_link'] = 'Last' ;

    $config['use_page_numbers'] = TRUE ;

    $config['prev_link'] = '&lt;' ;

    $config['uri_segment'] = 3 ;

    $config['num_links'] = 10 ;         

    $config['cur_tag_open'] = '<b>' ;

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

    $config['total_rows'] = $total_rows ;       

    $invoicepaginate = $this->m_applicant->showdeletedrecods( $config['per_page'], $this->uri->segment(3)) ;    

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

    $data4 = array(                             

    'data' => $invoicepaginate                                                                                       

    ) ;

    $this->load->view('applicant', $data4);

}

$this->uri->segment(3)在codeigniter中有什么用

当我输入$this->uri->segment(3);时它按预期工作,但是当我输入时$this->uri->segment(4);它停止工作

4

5 回答 5

57

这使您可以从 URI 字符串中检索信息

$this->uri->segment(n); // n=1 for controller, n=2 for method, etc

考虑这个例子:

http://example.com/index.php/controller/action/1stsegment/2ndsegment

它会回来

$this->uri->segment(1); // controller
$this->uri->segment(2); // action
$this->uri->segment(3); // 1stsegment
$this->uri->segment(4); // 2ndsegment
于 2013-10-10T10:59:18.233 回答
16

CodeIgniter 用户指南说:

$this->uri->segment(n)

允许您检索特定段。其中 n 是您要检索的段号。段从左到右编号。例如,如果您的完整 URL 是这样的: http ://example.com/index.php/news/local/metro/crime_is_up

段号是这样的:

1. news
2. local
3. metro
4. crime_is_up

所以segment指的是你的url结构段。通过上面的例子,$this->uri->segment(3)将是'metro',而$this->uri->segment(4)将是'crime_is_up'

于 2013-10-10T11:04:56.303 回答
4

在您的代码$this->uri->segment(3)中是指offset您在查询中使用的分页。根据您的$config['base_url'] = base_url().'index.php/papplicant/viewdeletedrecords/' ;$this->uri->segment(3)即段 3 是指偏移量。第一段是controller,第二段是method,然后是parameters发送到控制器的segments

于 2013-10-10T10:59:39.783 回答
4

默认情况下,如果段不存在,该函数将返回 FALSE(布尔值)。如果段丢失,则有一个可选的第二个参数允许您设置自己的默认值。例如,这将告诉函数在失败时返回数字零: $product_id = $this->uri->segment(3, 0);

它有助于避免编写这样的代码:

[if ($this->uri->segment(3) === FALSE)
{
    $product_id = 0;
}
else
{
    $product_id = $this->uri->segment(3);
}]
于 2017-06-02T12:15:11.077 回答
0

假设您有一个像这样的 网址 http://www.example.com/controller/action/arg1/arg2

如果您想知道此 url 中传递的参数是什么

$param_offset=0;
$params = array_slice($this->uri->rsegment_array(), $param_offset);
var_dump($params);

输出将是:

array (size=2)
  0 => string 'arg1'
  1 => string 'arg2'
于 2015-09-04T05:19:20.643 回答