隔了几年又接触了CI框架，需要做个AJAX分页，以前也就是懂个皮毛，现在是现学活用了。
首先来个正常分页的demo
public function querylog(){
$data = [];
if(!empty($_GET["stime"])){
$current_url= 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
}
else{
$current_url= 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'].'?noparam=1';
}
!empty($_GET["user"]) && $this->db->where("user",$_GET["user"]);
!empty($_GET["host"]) && $this->db->where("host",$_GET["host"]);
$stime = !empty($_GET["stime"])? $_GET["stime"]: date('Y-m-d H:i',time()-3600*24*30);
$etime = !empty($_GET["etime"])? $_GET["etime"]: date('Y-m-d H:i',time()+60);
$this->db->where("create_time >=",$stime);
$this->db->where("create_time <=",$etime);
// 分页
$this->load->library('pagination');
$config['base_url'] = $current_url;
$config['total_rows'] = $this->log->get_total_rows();
$config['per_page'] = 30;
$config['num_links'] = 5;
$config['page_query_string'] = TRUE;
$config['use_page_numbers'] = TRUE;
$this->pagination->initialize($config);
$offset = !empty($_GET['per_page']) ? $_GET['per_page'] : 1;
!empty($_GET["user"]) && $this->db->where("user",$etime);
$this->db->order_by("id","desc");
$data['datalist'] = $this->log->get_total_record_paging($config['per_page'],($offset-1)*$config['per_page']);
$setval["host"]=isset($_GET["host"]) ? $_GET["host"] : "";
$setval["user"]=isset($_GET["user"]) ? $_GET["user"] : "";
$setval["stime"]=$stime;
$setval["etime"]=$etime;
$data["setval"]=$setval;
$this->layout->view("inception/querylog",$data);
}
接下来，就是正题了，去system/libraries/Pagination.PHP添加个create_ajax_links方法
/**
* Generate the pagination links
*
* @access public
* @return string
*/
function create_ajax_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 '';
}
// Set the base page index for starting page number
if ($this->use_page_numbers)
{
$base_page = 1;
}
else
{
$base_page = 0;
}
// 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) != $base_page)
{
$this->cur_page = $CI->input->get($this->query_string_segment);
// Prep the current page - no funny business!
$this->cur_page = (int) $this->cur_page;
}
}
else
{
if ($_REQUEST['page'] != $base_page)
{
$this->cur_page = $_REQUEST['page'];
// Prep the current page - no funny business!
$this->cur_page = (int) $this->cur_page;
}
}
// Set current page to 1 if using page numbers instead of offset
if ($this->use_page_numbers AND $this->cur_page == 0)
{
$this->cur_page = $base_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 = $base_page;
}
// Is the page number beyond the result range?
// If so we show the last page
if ($this->use_page_numbers)
{
if ($this->cur_page > $num_pages)
{
$this->cur_page = $num_pages;
}
}
else
{
if ($this->cur_page > $this->total_rows)
{
$this->cur_page = ($num_pages - 1) * $this->per_page;
}
}
$uri_page_number = $this->cur_page;
if ( ! $this->use_page_numbers)
{
$this->cur_page = floor(($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...
$output = '';
// Render the "First" link
if ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links + 1))
{
$first_url = ($this->first_url == '') ? $this->base_url : $this->first_url;
$output .= $this->first_tag_open.'<a '." onclick='ajax_page(0);return false;'".$this->anchor_class.'href="javascript:void(0)">'.$this->first_link.'</a>'.$this->first_tag_close;
}
// Render the "prevIoUs" link
if ($this->prev_link !== FALSE AND $this->cur_page != 1)
{
if ($this->use_page_numbers)
{
$i = $uri_page_number - 1;
}
else
{
$i = $uri_page_number - $this->per_page;
}
if ($i == 0 && $this->first_url != '')
{
$output .= $this->prev_tag_open.'<a '." onclick='ajax_page(0);return false;'".$this->anchor_class.'href="javascript:void(0)">'.$this->prev_link.'</a>'.$this->prev_tag_close;
}
else
{
$i = ($i == 0) ? '' : $this->prefix.$i.$this->suffix;
$output .= $this->prev_tag_open.'<a '." onclick='ajax_page({$i});return false;'".$this->anchor_class.'href="javascript:void(0)">'.$this->prev_link.'</a>'.$this->prev_tag_close;
}
}
// Render the pages
if ($this->display_pages !== FALSE)
{
// Write the digit links
for ($loop = $start -1; $loop <= $end; $loop++)
{
if ($this->use_page_numbers)
{
$i = $loop;
}
else
{
$i = ($loop * $this->per_page) - $this->per_page;
}
if ($i >= $base_page)
{
if ($this->cur_page == $loop)
{
$output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
}
else
{
$n = ($i == $base_page) ? '' : $i;
if ($n == '' && $this->first_url != '')
{
$output .= $this->num_tag_open.'<a '." onclick='ajax_page(0);return false;'".$this->anchor_class.'href="javascript:void(0)">'.$loop.'</a>'.$this->num_tag_close;
}
else
{
$n = ($n == '') ? '' : $this->prefix.$n.$this->suffix;
$output .= $this->num_tag_open.'<a '." onclick='ajax_page({$n});return false;'".$this->anchor_class.'href="javascript:void(0)">'.$loop.'</a>'.$this->num_tag_close;
}
}
}
}
}
// Render the "next" link
if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
{
if ($this->use_page_numbers)
{
$i = $this->cur_page + 1;
}
else
{
$i = ($this->cur_page * $this->per_page);
}
$ajax_p = $this->prefix.$i.$this->suffix;
$output .= $this->next_tag_open.'<a '." onclick='ajax_page({$ajax_p});return false;'".$this->anchor_class.'href="javascript:void(0)">'.$this->next_link.'</a>'.$this->next_tag_close;
}
// Render the "Last" link
if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages)
{
if ($this->use_page_numbers)
{
$i = $num_pages;
}
else
{
$i = (($num_pages * $this->per_page) - $this->per_page);
}
$ajax_p = $this->prefix.$i.$this->suffix;
$output .= $this->last_tag_open.'<a '." onclick='ajax_page({$ajax_p});'". $this->anchor_class.'href="javascript:void(0)">'.$this->last_link.'</a>'.$this->last_tag_close;
}
// Kill double slashes. Note: Sometimes we can end up with a double slash
// in the penultimate link so we'll kill all double slashes.
$output = preg_replace("#([^:])//+#","\\1/",$output);
// Add the wrapper HTML if exists
$output = $this->full_tag_open.$output.$this->full_tag_close;
return $output;
} 其实也很简单，大致就是把create_links方法里的啊标签里的html改了下，借鉴TP的。
原文地址：https://www.jb51.cc/ajax/162660.html
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