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php分页类与分页函数多种分页样式供选择

时间：2021-07-01 10:21:17 帮助过：2人阅读

  3. /**

  4. * 页面名称：page_class.php
  5. */
  6. class Page {
  7. private $each_disNums; //每页显示的条目数
  8. private $nums; //总条目数
  9. private $current_page; //当前被选中的页
  10. private $sub_pages; //每次显示的页数
  11. private $pageNums; //总页数
  12. private $page_array = array (); //用来构造分页的数组
  13. private $subPage_link; //每个分页的链接
  14. /**
  15. *
  16. * __construct是SubPages的构造函数，用来在创建类的时候自动运行.
  17. * @$each_disNums 每页显示的条目数
  18. * @nums 总条目数
  19. * @current_num 当前被选中的页
  20. * @sub_pages 每次显示的页数
  21. * @subPage_link 每个分页的链接
  22. * @subPage_type 显示分页的类型
  23. *
  24. * 当@subPage_type=1的时候为普通分页模式
  25. * example：共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页]
  26. * 当@subPage_type=2的时候为经典分页样式
  27. * example：当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页]
  28. */
  29. function Page($each_disNums, $nums, $current_page, $sub_pages, $subPage_link) {
  30. $this->each_disNums = intval($each_disNums);
  31. $this->nums = intval($nums);
  32. if (!$current_page) {
  33. $this->current_page = 1;
  34. } else {
  35. $this->current_page = intval($current_page);
  36. }
  37. $this->sub_pages = intval($sub_pages);
  38. $this->pageNums = ceil($nums / $each_disNums);
  39. $this->subPage_link = $subPage_link;
  40. }
  41. /**
  42. * 照顾低版本
  43. */
  44. function __construct($each_disNums, $nums, $current_page, $sub_pages, $subPage_linke) {
  45. $this->Page($each_disNums, $nums, $current_page, $sub_pages, $subPage_link);
  46. }

  47. /*

  48. __destruct析构函数，当类不在使用的时候调用，该函数用来释放资源。
  49. */
  50. function __destruct() {
  51. unset ($each_disNums);
  52. unset ($nums);
  53. unset ($current_page);
  54. unset ($sub_pages);
  55. unset ($pageNums);
  56. unset ($page_array);
  57. unset ($subPage_link);
  58. }

  59. /*

  60. 用来给建立分页的数组初始化的函数。
  61. */
  62. function initArray() {
  63. for ($i = 0; $i < $this->sub_pages; $i++) {
  64. $this->page_array[$i] = $i;
  65. }
  66. return $this->page_array;
  67. }

  68. /*

  69. construct_num_Page该函数使用来构造显示的条目
  70. 即使：[1][2][3][4][5][6][7][8][9][10]
  71. */
  72. function construct_num_Page() {
  73. if ($this->pageNums < $this->sub_pages) {
  74. $current_array = array ();
  75. for ($i = 0; $i < $this->pageNums; $i++) {
  76. $current_array[$i] = $i +1;
  77. }
  78. } else {
  79. $current_array = $this->initArray();
  80. if ($this->current_page <= 3) {
  81. for ($i = 0; $i < count($current_array); $i++) {
  82. $current_array[$i] = $i +1;
  83. }
  84. }
  85. elseif ($this->current_page <= $this->pageNums && $this->current_page > $this->pageNums - $this->sub_pages + 1) {
  86. for ($i = 0; $i < count($current_array); $i++) {
  87. $current_array[$i] = ($this->pageNums) - ($this->sub_pages) + 1 + $i;
  88. }
  89. } else {
  90. for ($i = 0; $i < count($current_array); $i++) {
  91. $current_array[$i] = $this->current_page - 2 + $i;
  92. }
  93. }
  94. }

  95. return $current_array;

  96. }

  97. /*

  98. 构造普通模式的分页
  99. 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [下页] [尾页]
  100. */
  101. function subPageCss1() {
  102. $subPageCss1Str = "";
  103. $subPageCss1Str .= "共" . $this->nums . "条记录，";
  104. $subPageCss1Str .= "每页显示" . $this->each_disNums . "条，";
  105. $subPageCss1Str .= "当前第" . $this->current_page . "/" . $this->pageNums . "页 ";
  106. if ($this->current_page > 1) {
  107. $firstPageUrl = $this->subPage_link . "1";
  108. $prewPageUrl = $this->subPage_link . ($this->current_page - 1);
  109. $subPageCss1Str .= "[首页] ";
  110. $subPageCss1Str .= "[上一页] ";
  111. } else {
  112. $subPageCss1Str .= "[首页] ";
  113. $subPageCss1Str .= "[上一页] ";
  114. }

  115. if ($this->current_page < $this->pageNums) {

  116. $lastPageUrl = $this->subPage_link . $this->pageNums;
  117. $nextPageUrl = $this->subPage_link . ($this->current_page + 1);
  118. $subPageCss1Str .= " [下一页] ";
  119. $subPageCss1Str .= "[尾页] ";
  120. } else {
  121. $subPageCss1Str .= "[下一页] ";
  122. $subPageCss1Str .= "[尾页] ";
  123. }

  124. return $subPageCss1Str;

  125. }

  126. /*

  127. 构造经典模式的分页
  128. 当前第1/453页 [首页] [上页] 1 2 3 4 5 6 7 8 9 10 [下页] [尾页]
  129. */
  130. function subPageCss2() {
  131. $subPageCss2Str = "";
  132. $subPageCss2Str .= "当前第" . $this->current_page . "/" . $this->pageNums . "页 ";

  133. if ($this->current_page > 1) {

  134. $firstPageUrl = $this->subPage_link . "1";
  135. $prewPageUrl = $this->subPage_link . ($this->current_page - 1);
  136. $subPageCss2Str .= "[首页] ";
  137. $subPageCss2Str .= "[上一页] ";
  138. } else {
  139. $subPageCss2Str .= "[首页] ";
  140. $subPageCss2Str .= "[上一页] ";
  141. }

  142. $a = $this->construct_num_Page();

  143. for ($i = 0; $i < count($a); $i++) {
  144. $s = $a[$i];
  145. if ($s == $this->current_page) {
  146. $subPageCss2Str .= "[" . $s . "]";
  147. } else {
  148. $url = $this->subPage_link . $s;
  149. $subPageCss2Str .= "[" . $s . "]";
  150. }
  151. }

  152. if ($this->current_page < $this->pageNums) {

  153. $lastPageUrl = $this->subPage_link . $this->pageNums;
  154. $nextPageUrl = $this->subPage_link . ($this->current_page + 1);
  155. $subPageCss2Str .= " [下一页] ";
  156. $subPageCss2Str .= "[尾页] ";
  157. } else {
  158. $subPageCss2Str .= "[下一页] ";
  159. $subPageCss2Str .= "[尾页] ";
  160. }
  161. return $subPageCss2Str;
  162. }
  163. }

  164. //测试两种不同效果

  165. $t = new Page(10, 100, $_GET['p'], 5, 'page_class.php?p=');
  166. echo $t->subPageCss2(); //调用经典分页函数

  167. echo "
    ";

  168. echo $t->subPageCss1();//调用普通分页函数

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