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php生成翻页链接(页码)列表的函数

时间：2021-07-01 10:21:17 帮助过：13人阅读

  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)< 1 || !isset($element_total_count))
  54. {
  55. return '';
  56. }
  57. if($element_total_count <= $per_page_elem_count)
  58. return '';
  59. if($current_page>$page_total_count)
  60. $current_page = 1;
  62. if(strpos($href,"#"))
  63. {
  64. $label = substr($href,strpos($href,"#"));
  65. $href = substr($href,0,strpos($href,"#"));
  66. }
  68. /* 生成页码 */
  69. if($current_page > ceil($show_page_num/2))
  70. {
  71. $start = $current_page - ceil($show_page_num/2);
  72. $end = (($current_page+ceil($show_page_num/2))<$page_total_count) ?
  73. $current_page+ceil($show_page_num/2)-1 : $page_total_count;
  74. }
  75. else
  76. {
  77. $start = 1;
  78. $end = ($show_page_num>$page_total_count) ? $page_total_count : $show_page_num;
  79. }
  80. if(!empty($num_class))
  81. $num_class_str = ' class="'.$num_class.'"';
  82. else
  83. $num_class_str = '';
  84. $page_num_string = '';
  86. for($i=$start;$i<=$end;$i++)
  87. {
  88. if(intval($i) == intval($current_page))
  89. $page_num_string .= ''.$i.'';
  90. else
  91. $page_num_string .= ''.$i.'';
  92. }
  94. /* 上下翻页 */
  95. $prev_page = (intval($current_page-1)>0)?intval($current_page-1):0;
  96. $next_page = (intval($current_page)<$page_total_count) ? intval($current_page+1) : 0;
  97. if(!empty($up_down_class))
  98. $up_down_class_str = ' class="'.$up_down_class.'"';
  99. else
  100. $up_down_class_str = '';
  102. $page_up_string = '';
  104. if(intval($prev_page) > 0)
  105. $page_up_string = '上一页';
  106. else
  107. $page_up_string = '上一页';
  108. $page_down_string = '';
  110. if(intval($next_page) > 0)
  111. $page_down_string .= '下一页';
  112. else
  113. $page_down_string .= '下一页';
  114. /* 返回结果 */
  115. return $page_up_string . $page_num_string . $page_down_string;
  116. }
  117. ?>

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