Php codeigniter中的分页-第二页

我试图在codeigniter中进行分页。它在第一页中运行良好。但当我点击第二页时，页面似乎是空白的。数据未加载

我的控制器：

<?php
class Generate_report extends CI_Controller {

    public $newdata;
    public $layout = 'default';
    public $html = '';
    public $title = 'Title';

    function __construct() {
        parent::__construct();
        if ($this->router->method == 'index') {
            $this->config->set_item('enable_hooks', FALSE);
        }

        $this->load->helper('form');
        $this->load->helper(array('url', 'left_menu'));
         $this->load->library('pagination');
        $this->load->library(array('form_validation', 'session'));
        $this->load->model('getReportModel');
        $this->left_menu = display_menu($this->session->userdata('role'));
    }
       public function generate_employeereport($offSet = NULL){

        //$this->config->set_item('enable_hooks', FALSE);
            if ($this->session->userdata('role') == "Admin" ||$this->session->userdata('role') == "HR Manager") {

               if(isset($_GET['submit'])) { 

                $session_data = $this->session->all_userdata();
                $category = $this->input->get('category');
                $report_join_date = date("Y-m-d", strtotime($this->input->get('report_join_date')));
                $designation = $this->input->get('designation');
                $purpose = $this->input->get('purpose');
                $data['category']= $category;
                $data['report_join_date']= $this->input->get('report_join_date');
                $data['designation']= $designation;

                $where= array();
                if($category == "Less than"){
                if($report_join_date!="")
                {
                 $where+= array("primary_details.date_join <" => $report_join_date);   
                }
                }
                else if($category == "Less than or Equal to"){
                if($report_join_date!="")
                {
                 $where+= array("primary_details.date_join <=" => $report_join_date);   
                }
                }
                else if($category == "Greater than"){
                if($report_join_date!="")
                {
                 $where+= array("primary_details.date_join >" => $report_join_date);   
                }
                }
                else if($category == "Greater than or Equal to"){
                if($report_join_date!="")
                {
                 $where+= array("primary_details.date_join >=" => $report_join_date);   
                }
                }
                else {
                if($report_join_date!="")
                {
                 $where+= array("primary_details.date_join" => $report_join_date);   
                }
                }
                if($designation!="")
                {
                 $where+= array("ta_designations.designations" => $designation);   
                }
              $config["base_url"] = base_url() . "generate_report/generate_employeereport/";
              $config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
              $config["per_page"] = 50;
              $config["uri_segment"] = 3; //part of the URL which contain the page section
              $config['use_page_numbers'] = FALSE;
              $config['reuse_query_string']=TRUE;
              $config['full_tag_open'] = '<ul>';
              $config['full_tag_close'] = '</ul>';
              $config['num_tag_open'] = '<li>';
              $config['num_tag_close'] = '</li>';
              $config['cur_tag_open'] = '<li><a class="current" href="#">';
              $config['cur_tag_close'] = '</a></li>';
              $config['prev_tag_open'] = '<li>';
              $config['prev_tag_close'] = '</li>';
              $config['prev_link'] = '←';
              $config['next_link'] = '→';
              $config['next_tag_open'] = '<li>';
              $config['next_tag_close'] = '</li>';
              $config['first_link'] = 'First';
              $config['first_tag_open'] = '<li>';
              $config['first_tag_close'] = '</li>';
              $config['last_link'] = 'Last';
              $config['last_tag_open'] = '<li>';
              $config['last_tag_close'] = '</li>';
              $data['offSet'] = $offSet;
              $this->pagination->initialize($config);
              $data['employees'] = $this->getReportModel->getEmployees($where, $config["per_page"], $offSet);
              $this->html= $this->load->view('report_generation/employee_report',$data,TRUE);  
            }  
        }
}

加入日期
挑选
试试这个

在控制器中

$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config["uri_segment"] = 2; # Changed
$limit = $config['per_page']; # added

<!-- Rest of your code -->

//$data['offSet'] = $offSet; remove this
$this->pagination->initialize($config);

$page = ($this->uri->segment(2)) ? $this->uri->segment(2) : 0; # added


$data['employees'] = $this->getReportModel->getEmployees($where, $page, $limit);
$this->html= $this->load->view('report_generation/employee_report',$data,TRUE);  

$this->load->library('pagination'); 
$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
echo $this->pagination->create_links();
$data['employees'] = $this->getReportModel->getEmployees($where, $config["per_page"]); # Here passed only two parameters

试试这个

在控制器中

$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config["uri_segment"] = 2; # Changed
$limit = $config['per_page']; # added

<!-- Rest of your code -->

//$data['offSet'] = $offSet; remove this
$this->pagination->initialize($config);

$page = ($this->uri->segment(2)) ? $this->uri->segment(2) : 0; # added


$data['employees'] = $this->getReportModel->getEmployees($where, $page, $limit);
$this->html= $this->load->view('report_generation/employee_report',$data,TRUE);  

$this->load->library('pagination'); 
$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
echo $this->pagination->create_links();
$data['employees'] = $this->getReportModel->getEmployees($where, $config["per_page"]); # Here passed only two parameters

在控制器上启用
$config['page\u query\u string']

$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config["uri_segment"] = 2; # Changed
$limit = $config['per_page']; # added

<!-- Rest of your code -->

//$data['offSet'] = $offSet; remove this
$this->pagination->initialize($config);

$page = ($this->uri->segment(2)) ? $this->uri->segment(2) : 0; # added


$data['employees'] = $this->getReportModel->getEmployees($where, $page, $limit);
$this->html= $this->load->view('report_generation/employee_report',$data,TRUE);  

$this->load->library('pagination'); 
$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
echo $this->pagination->create_links();
$data['employees'] = $this->getReportModel->getEmployees($where, $config["per_page"]); # Here passed only two parameters

在您的模型上使用以下命令更改查询-

public function getEmployees($where,$limit) {

        $offSet=$this->input->get('per_page');
        if(!$offSet){

            $offSet=0;
        }
      $result ="";

      $this->db->select('primary_details.name,primary_details.date_birth,primary_details.date_join,ta_designations.designations');
      $this->db->from('primary_details');
      $this->db->join('ta_designations', 'primary_details.designation =  ta_designations.id');
      $this->db->join('joining_details', 'primary_details.p_id =  joining_details.empl_id');
      $this->db->where('joining_details.active', 1);
      if($where!=""){     

      $this->db->where($where);
       }
      $this->db->limit($limit, $offSet);

      $query = $this->db->get();
      //echo $this->db->last_query();
      $result = $query->result_array();
      return $result;
    }   

在控制器上启用
$config['page\u query\u string']

$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config["uri_segment"] = 2; # Changed
$limit = $config['per_page']; # added

<!-- Rest of your code -->

//$data['offSet'] = $offSet; remove this
$this->pagination->initialize($config);

$page = ($this->uri->segment(2)) ? $this->uri->segment(2) : 0; # added


$data['employees'] = $this->getReportModel->getEmployees($where, $page, $limit);
$this->html= $this->load->view('report_generation/employee_report',$data,TRUE);  

$this->load->library('pagination'); 
$config["base_url"] = base_url() . "generate_report/generate_employeereport/";
$config["total_rows"] = $this->getReportModel->getEmployees_count($where); 
$config["per_page"] = 50;
$config['page_query_string'] = TRUE;
$this->pagination->initialize($config);
echo $this->pagination->create_links();
$data['employees'] = $this->getReportModel->getEmployees($where, $config["per_page"]); # Here passed only two parameters

在您的模型上使用以下命令更改查询-

public function getEmployees($where,$limit) {

        $offSet=$this->input->get('per_page');
        if(!$offSet){

            $offSet=0;
        }
      $result ="";

      $this->db->select('primary_details.name,primary_details.date_birth,primary_details.date_join,ta_designations.designations');
      $this->db->from('primary_details');
      $this->db->join('ta_designations', 'primary_details.designation =  ta_designations.id');
      $this->db->join('joining_details', 'primary_details.p_id =  joining_details.empl_id');
      $this->db->where('joining_details.active', 1);
      if($where!=""){     

      $this->db->where($where);
       }
      $this->db->limit($limit, $offSet);

      $query = $this->db->get();
      //echo $this->db->last_query();
      $result = $query->result_array();
      return $result;
    }   

尝试添加
$config[“num_links”]=10到分页
config
添加
error\u报告（E\u ALL）
并查看出现的错误。尝试添加
$config[“num_links”]=10到分页
config
添加
error\u报告（E\u ALL）并查看您得到的错误。。