php 生成翻页链接(页码)列表的函数

2. /**
3. * 生成页码列表
4. *
5. * @param int $element_total_count 元素总数
6. * @param int $current_page 当前页
7. * @param int $per_page_elem_count 每页元素数
8. * @param int $show_page_num 列表显示的页码数
9. * @param string $up_down_class 上下翻页样式
10. * @param string $num_class 当前页页码数字样式
11. * @param string $href 页面链接
12. * @param string $page_symbol 传递页码数的链接参数
13. * @return string
14. */
15. function get_page_link_list($element_total_count,$current_page=1,$per_page_elem_count=10,$show_page_num=10,$up_down_class,$num_class,$href,$page_symbol='p')
16. {
17. if(empty($href))
18. {
19. //自动取得剔除页码参数的页面链接
20. $page_name = basename($_SERVER['PHP_SELF']);
21. $params = $_SERVER['QUERY_STRING'];
22. $params_str = '';
23. if(!empty($params))
24. {
25. $params = str_replace('&', '&', $params);
26. $params_array = explode('&', $params);
27. foreach($params_array as $param)
28. {
29. if(!empty($param))
30. {
31. $index = strpos($param, '=');
32. if($index)
33. {
34. $key = substr($param, 0, $index);
35. if($key && $key != $page_symbol)
36. $params_str .= $param . '&';
37. }
38. }
39. }
40. }
41. if(!empty($params_str))
42. $href = $page_name . '?' . $params_str;
43. else
44. $href = $page_name;
46. $href = rtrim($href,'&');
47. }
49. $prefix = strpos($href,"?") ? "&" : "?";
50. $prefix .= $page_symbol;
52. $page_total_count = ceil($element_total_count/$per_page_elem_count);
53. if(intval($element_total_count) {
54. return '';
55. }
56. if($element_total_count return '';
57. if($current_page>$page_total_count)
58. $current_page = 1;
60. if(strpos($href,"#"))
61. {
62. $label = substr($href,strpos($href,"#"));
63. $href = substr($href,0,strpos($href,"#"));
64. }
66. /* 生成页码 */
67. if($current_page > ceil($show_page_num/2))
68. {
69. $start = $current_page - ceil($show_page_num/2);
70. $end = (($current_page+ceil($show_page_num/2)) $current_page+ceil($show_page_num/2)-1 : $page_total_count;
71. }
72. else
73. {
74. $start = 1;
75. $end = ($show_page_num>$page_total_count) ? $page_total_count : $show_page_num;
76. }
77. if(!empty($num_class))
78. $num_class_str = ' class="'.$num_class.'"';
79. else
80. $num_class_str = '';
81. $page_num_string = '';
83. for($i=$start;$i {
84. if(intval($i) == intval($current_page))
85. $page_num_string .= ''.$i.'';
86. else
87. $page_num_string .= ''.$i.'';
88. }
90. /* 上下翻页 */
91. $prev_page = (intval($current_page-1)>0)?intval($current_page-1):0;
92. $next_page = (intval($current_page) if(!empty($up_down_class))
93. $up_down_class_str = ' class="'.$up_down_class.'"';
94. else
95. $up_down_class_str = '';
97. $page_up_string = '';
99. if(intval($prev_page) > 0)
100. $page_up_string = '上一页';
101. else
102. $page_up_string = '上一页';
103. $page_down_string = '';
105. if(intval($next_page) > 0)
106. $page_down_string .= '下一页';
107. else
108. $page_down_string .= '下一页';
109. /* 返回结果 */
110. return $page_up_string . $page_num_string . $page_down_string;
111. }
112. ?>

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