A general method to implement data paging in PHP
Release： 2016-07-25 08:45:27
Original
1019 people have browsed it
- function show_page($count,$page,$page_size)
- {
- $page_count = ceil($count/$page_size); //Calculate the total number of pages
- $init=1;
- $page_len=7 ;
- $max_p=$page_count;
- $pages=$page_count;
- //Judge the current page number
- $page=(empty($page)||$page<0)?1:$page;
- //Get the current page url
- $url = $_SERVER['REQUEST_URI'];
- //Remove the original page parameter in the url to add the new page parameter
- $parsedurl=parse_url($url);
- $url_query = isset($parsedurl['query ']) ? $parsedurl['query']:'';
- if($url_query != ''){
- $url_query = preg_replace("/(^|&)page=$page/",'',$ url_query);
- $url = str_replace($parsedurl['query'],$url_query,$url);
- if($url_query != ''){
- $url .= '&';
- }
- } else {
- $url .= '?';
- }
- //Paging function code
- $page_len = ($page_len%2)?$page_len:$page_len+1; //Number of page numbers
- $pageoffset = ($page_len-1 )/2; //The left and right offset of the page number
- $navs='';
- if($pages != 0){
- if($page!=1){
- $navs.="Homepage "; //First page
- $navs.="Previous page"; //Previous page
- } else {
- $navs .= "Homepage ";
- $navs .= "Previous page";
- }
- if($pages>$page_len)
- {
- //If the current page is less than or equal to the left Shift
- if($page<=$pageoffset){
- $init=1;
- $max_p = $page_len;
- }
- else //If the current page is greater than the left offset
- {
- //If the current page number’s right offset exceeds Maximum number of pages
- if($page+$pageoffset>=$pages+1){
- $init = $pages-$page_len+1;
- }
- else
- {
- //Calculation when both left and right offsets exist
- $ init = $page-$pageoffset;
- $max_p = $page+$pageoffset;
- }
- }
- }
- for($i=$init;$i<=$max_p;$i++)
- {
- if($i= =$page){$navs.="".$i.'';}
- else {$navs.=" ".$i."";}
- }
- if($page!=$pages)
- {
- $navs.=" < ;a href="".$url."page=".($page+1)."">Next page ";//Next page
- $navs.="Last page"; //Last page
- } else {
- $navs .= "Next page";
- $navs .= "Last page";
- }
- echo "$navs";
- }
- }
|
Pagination, PHP
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