一款超简单的php mysql 分页,也是很实例的一款函数,他可以自动获取用户增加的参数,而不需要用户来增加,很自能化的一款自能分页程序,代码如下:

1. +-----------------------------------------------------------------------
2. | 文件概要：分页显示函数
3. | 文件名称：page.php
4. +-----------------------------------------------------------------------
5. */
6. function _pageft($totle, $displaypg = 20, $url = '') {
7. global $page, $firstcount, $pagenav, $_server;
8. $globals["displaypg"] = $displaypg;
9. if (!$page)
10. $page = 1;
11. if (!$url) {//开源代码phpfensi.com
12. $url = $_server["request_uri"];
13. }
14. //url分析：
15. $parse_url = parse_url($url);
16. $url_query = $parse_url["query"]; //单独取出url的查询字串
17. if ($url_query) {
18. $url_query = preg_replace("/(^|&)page=$page/", "", $url_query);
19. $url = str_replace($parse_url["query"], $url_query, $url);
20. if ($url_query)
21. $url .= "&page";
22. else
23. $url .= "page";
24. } else {
25. $url .= "?page";
26. }
27. $lastpg = ceil($totle / $displaypg); //最后页，也是总页数
28. $page = min($lastpg, $page);
29. $prepg = $page -1; //上一页
30. $nextpg = ($page == $lastpg ? 0 : $page +1); //下一页
31. $firstcount = ($page -1) * $displaypg;
32. //开始分页导航条代码：
33. $pagenav = "显示第 <b>" . ($totle ? ($firstcount +1) : 0) . "</b>-<b>" . min($firstcount + $displaypg, $totle) . "</b> 条记录&nbsp;&nbsp;共 <font color='red'>$totle</font> 条留言";
34. //如果只有一页则跳出函数：
35. if ($lastpg <= 1)
36. return false;
37. $pagenav .= " <a href='$url=1'>首页</a> ";
38. if ($prepg)
39. $pagenav .= " <a href='$url=$prepg'>前页</a> ";
40. else
41. $pagenav .= " 前页 ";
42. if ($nextpg)
43. $pagenav .= " <a href='$url=$nextpg'>后页</a> ";
44. else
45. $pagenav .= " 后页 ";
46. $pagenav .= " <a href='$url=$lastpg'>尾页</a> ";
47. //下拉跳转列表，循环列出所有页码：
48. $pagenav .= "　到第 <select class='border:1px solid #98ccfa;' name='topage' size='1' onchange='window.location="$url="+this.value'>n";
49. for ($i = 1; $i <= $lastpg; $i++) {
50. if ($i == $page)
51. $pagenav .= "<option value='$i' selected>$i</option>n";
52. else
53. $pagenav .= "<option value='$i'>$i</option>n";
54. }
55. $pagenav .= "</select> 页&nbsp;&nbsp;&nbsp;共 <font color='red'>$lastpg</font> 页";
56. }
57. ?>