修改了CI的分页类，各位给点意见

hunger

PHP复制代码

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package  CodeIgniter
* @author  ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2009, EllisLab, Inc.
* @license  http://codeigniter.com/user_guide/license.html
* @link  http://codeigniter.com
* @since  Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* Pagination Class
*
* @package  CodeIgniter
* @subpackage Libraries
* @category Pagination
* @author  ExpressionEngine Dev Team
* @link  http://codeigniter.com/user_guide/libraries/pagination.html
*/
class CI_Pagination {
var $base_url   = ''; // The page we are linking to
var $total_rows    = ''; // Total number of items (database results)
var $per_page    = 10; // Max number of items you want shown per page
var $num_links   =  2; // Number of "digit" links to show before/after the currently viewed page
var $cur_page    =  0; // The current page being viewed
var $first_link     = '‹ First';
var $next_link   = '>';
var $prev_link   = '<';
var $last_link   = 'Last ›';
var $uri_segment  = 3;
var $full_tag_open  = '';
var $full_tag_close  = '';
var $first_tag_open  = '';
var $first_tag_close = ' ';
var $last_tag_open  = ' ';
var $last_tag_close  = '';
var $cur_tag_open  = ' <strong>';
var $cur_tag_close  = '</strong>';
var $next_tag_open  = ' ';
var $next_tag_close  = ' ';
var $prev_tag_open  = ' ';
var $prev_tag_close  = '';
var $num_tag_open  = ' ';
var $num_tag_close  = '';
var $page_query_string = FALSE;
var $query_string_segment = 'per_page';
/**
  * Constructor
  *
  * @access public
  * @param array initialization parameters
  */
function CI_Pagination($params = array())
{
  if (count($params) > 0)
  {
   $this->initialize($params);
  }
  log_message('debug', "Pagination Class Initialized");
}
// --------------------------------------------------------------------
/**
  * Initialize Preferences
  *
  * @access public
  * @param array initialization parameters
  * @return void
  */
function initialize($params = array())
{
  if (count($params) > 0)
  {
   foreach ($params as $key => $val)
   {
    if (isset($this->$key))
    {
     $this->$key = $val;
    }
   }
  }
}
// --------------------------------------------------------------------
/**
  * Generate the pagination links
  *
  * @access public
  * @return string
  */
function create_links()
{
  // If our item count or per-page total is zero there is no need to continue.
  if ($this->total_rows == 0 OR $this->per_page == 0)
  {
   return '';
  }
  // Calculate the total number of pages
  $num_pages = ceil($this->total_rows / $this->per_page);
  // Is there only one page? Hm... nothing more to do here then.
  if ($num_pages == 1)
  {
   return '';
  }
  // Determine the current page number.
  $CI =& get_instance();
  if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
  {
   if ($CI->input->get($this->query_string_segment) != 0)
   {
    $this->cur_page = $CI->input->get($this->query_string_segment);
    // Prep the current page - no funny business!
    $this->cur_page = (int) $this->cur_page;
   }
  }
  else
  {
   if ($CI->uri->segment($this->uri_segment) != 0)
   {
    $this->cur_page = $CI->uri->segment($this->uri_segment);
    // Prep the current page - no funny business!
    $this->cur_page = (int) $this->cur_page;
   }
  }
  $this->num_links = (int)$this->num_links;
  if ($this->num_links < 1)
  {
   show_error('Your number of links must be a positive number.');
  }
  if ( ! is_numeric($this->cur_page))
  {
   $this->cur_page = 0;
  }
  // Is the page number beyond the result range?
  // If so we show the last page
  if ($this->cur_page > $this->total_rows)
  {
   $this->cur_page = ($num_pages - 1) * $this->per_page;
  }
  $uri_page_number = $this->cur_page;
  $this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
  // Calculate the start and end numbers. These determine
  // which number to start and end the digit links with
  $start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
  $end   = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;
  // Is pagination being used over GET or POST?  If get, add a per_page query
  // string. If post, add a trailing slash to the base URL if needed
  if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
  {
   $this->base_url = rtrim($this->base_url).'&'.$this->query_string_segment.'=';
  }
  else
  {
   $this->base_url = rtrim($this->base_url, '/') .'/';
  }
    // And here we go...
  $output = '';
  // Render the "First" link
  /* 去掉原第一页————雷旺2010-2-1
  if  ($this->cur_page > ($this->num_links + 1))
  {
   $output .= $this->first_tag_open.'<a href="'.$this->base_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
  }
  */
        //共(x)条 第(x/xx)页————雷旺2010-2-1
        $output .= '共'.$this->total_rows.'条  第('.$this->cur_page.'/'.$num_pages.')页    ';
  // Render the "previous" link
  if  ($this->cur_page != 1)
  {
   $i = $uri_page_number - $this->per_page;
   if ($i == 0) $i = '';
   $output .= $this->prev_tag_open.'<a href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
  }
        //数字显示第一页，之后加省略号————雷旺2010-2-1
  if  ($this->cur_page > ($this->num_links + 1))
  {
   $output .= $this->num_tag_open.'<a href="'.$this->base_url.'">1</a>'.$this->num_tag_close;
  }
  if  ($this->cur_page > ($this->num_links + 2))
  {
   $output .= ' ... ';
  }
  // Write the digit links
  for ($loop = $start -1; $loop <= $end; $loop++)
  {
   $i = ($loop * $this->per_page) - $this->per_page;
   if ($i >= 0)
   {
    if ($this->cur_page == $loop)
    {
     $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
    }
    else
    {
     $n = ($i == 0) ? '' : $i;
     $output .= $this->num_tag_open.'<a href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close;
    }
   }
  }
        //数字显示最后一页，之前加省略号————雷旺2010-2-1
  if (($this->cur_page + $this->num_links) < $num_pages-1)
  {
   $output .= ' ... ' ;
  }
  if (($this->cur_page + $this->num_links) < $num_pages)
  {
   $i = (($num_pages * $this->per_page) - $this->per_page);
   $output .= $this->num_tag_open.'<a href="'.$this->base_url.$i.'">'.$num_pages.'</a>'.$this->num_tag_close;
  }
  // Render the "next" link
  if ($this->cur_page < $num_pages)
  {
   $output .= $this->next_tag_open.'<a href="'.$this->base_url.($this->cur_page * $this->per_page).'">'.$this->next_link.'</a>'.$this->next_tag_close;
  }
  // Render the "Last" link
  /* 去掉原最后一页————雷旺2010-2-1
  if (($this->cur_page + $this->num_links) < $num_pages)
  {
   $i = (($num_pages * $this->per_page) - $this->per_page);
   $output .= $this->last_tag_open.'<a href="'.$this->base_url.$i.'">'.$this->last_link.'</a>'.$this->last_tag_close;
  }
  */
  //到第 口 页  确定————雷旺2010-2-1
  $output .= '    到第<select name="pages" id="pages">';
  for ($i=1;$i<=$num_pages;$i++)
  $output .= '<option value="'.$i.'">'.$i.'</option>';
  $output .= ' </select>页  <input name="pagessubmit" type="button" value="确定">';
  $output .= '<script type="text/javascript"> pages.value='.$this->cur_page.';</script>';
  // Kill double slashes.  Note: Sometimes we can end up with a double slash
  // in the penultimate link so we'll kill all double slashes.
  $output = preg_replace("#([^:])//+#", "[url=file://\\1/]\\1/[/url]", $output);
  // Add the wrapper HTML if exists
  $output = $this->full_tag_open.$output.$this->full_tag_close;
  return $output;
}
}
// END Pagination Class
/* End of file Pagination.php */
/* Location: ./system/libraries/Pagination.php */

复制代码

smallrong

不错。。如果可以用插件形式实现更好。。确定按钮或者不需要，直接在下拉框中选择就跳就好了。。