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一个php分页类代码(附效果图)

程序员文章站 2022-06-05 23:27:35
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  1. /**

  2. * 简单分页类
  3. * Page.class.php
  4. */
  5. class Page
  6. {
  7. private $page_num; //每页显示的信息条数
  8. private $page_all_no; //信息的总条数
  9. private $page_len; //显示多少个页码
  10. private $page; //当前的页数
  11. private $page_max; //页数最大值
  12. private $page_no_array; //页数的数组
  13. public $start_num; //查询语句limit的起始值
  14. private $page_change; //在第几个页码开始 页码递增
  15. private $URL; //获取当前页面的URL
  16. public function __construct($page_all_no, $page_num=5, $page_len=5)

  17. {
  18. $this->page_all_no = intval($page_all_no);
  19. $this->page_num = intval($page_num);
  20. $this->page_len = intval($page_len);
  21. $this->URL = $_SERVER['REQUEST_URI'];
  22. $this->max_page(); //得到页数的最大值
  23. $this->page_no(); //得到当前页数
  24. $this->page_no_array(); //页数数组
  25. $this->start_num(); //得到sql语句中limit的起始值
  26. $this->change_page(); //得到递增开始的页码$this->page_change
  27. $this->getURL(); //得到当前的URL并处理返回
  28. }
  29. private function isArray($str,$str_self)

  30. {
  31. if(!is_array($str)) throw new Exception("$str_self must be an Array type");
  32. }
  33. private function page_no()

  34. {
  35. $this->page = isset($_GET['page']) ? $_GET['page'] : 1;
  36. if(isset($_GET['page']) && $_GET['page'] page = 1;
  37. if(isset($_GET['page']) && $_GET['page'] > $this->page_max) $this->page = $this->page_max;
  38. return $this->page;
  39. }
  40. private function max_page()

  41. {
  42. return $this->page_max = $this->page_all_no page_all_no/$this->page_num);
  43. }
  44. private function change_page()

  45. {
  46. return $this->page_change = ceil($this->page_len / 2);
  47. }
  48. private function page_no_array()

  49. {
  50. return $this->page_no_array = range(1, $this->page_max);
  51. }
  52. private function start_num()

  53. {
  54. return $this->start_num = $this->page_num * ($this->page - 1);
  55. }
  56. private function getURL()

  57. {
  58. if(!empty($_SERVER['argc']) ? $_SERVER['argc'] == 0 : strpos($_SERVER['REQUEST_URI'], '?') === false)
  59. {
  60. $this->URL = $this->URL.'?';
  61. }else{
  62. $url_a = "/\?page=[0-9]{1,}/";
  63. $url_b = "/&page=[0-9]{1,}/";
  64. ereg("\?page=[0-9]{1,}", $this->URL) ? $this->URL = preg_replace($url_a, "?", $this->URL):
  65. ereg("&page=[0-9]{1,}", $this->URL) ? $this->URL = preg_replace($url_b, "&", $this->URL):$this->URL = $this->URL.'&';
  66. }
  67. return $this->URL;
  68. }
  69. private function header_info($total_data_modifier='总数:', $total_page_modifier=' 总页数:', $current_page_modifier=' 当前页:', $header_info_modifier='', $header_data_color = 'red'){

  70. if($this->page_max != 1 && $this->page_all_no != 0)
  71. {
  72. $header_info = $total_data_modifier.''.$this->page_all_no.'';
  73. $header_info .= $total_page_modifier.''.$this->page_max.'';
  74. $header_info .= $current_page_modifier.''.$this->page.' '."\r\n";
  75. if(!empty($header_info_modifier)) $header_info = $header_info_modifier.$header_info;
  76. return $header_info;
  77. }else{
  78. return NULL;
  79. }
  80. }
  81. private function first($first_format = '第一页')

  82. {
  83. return $this->page == 1 ? $first_format."\r\n" : ''.$first_format.''."\r\n";
  84. }
  85. private function last($last_format = '上一页')

  86. {
  87. if($this->page == 1) return $last_format."\r\n";
  88. return $this->page-1 == 1 ? ''.$last_format.''."\r\n" : ''.$last_format.''."\r\n";
  89. }
  90. private function page_num_format($separator=' ', $left_modifier='[', $right_modifier=']', $both_sides=false, $current_page_color = 'red')

  91. {
  92. empty($separator) ? $separator = ' ' : $separator;
  93. $page_array = '';
  94. if($this->page_max page_len)
  95. {
  96. for ($i=0; $i page_max; $i++)
  97. {
  98. if($this->page_no_array[$i] == $this->page)
  99. {
  100. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  101. }else{
  102. if($i == 0)
  103. {
  104. $page_one = substr($this->URL,0,strlen($this->URL)-1);
  105. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  106. }else{
  107. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  108. }
  109. }
  110. $page_array .= $the[$i].$separator;
  111. }
  112. if($both_sides === false)
  113. {
  114. $page_array = substr($page_array,0,strrpos($page_array, $separator));
  115. }elseif ($both_sides === true){
  116. $page_array = $separator.$page_array;
  117. }else{
  118. throw new Exception('ERROR: $both_sides must be a boolean type.');
  119. }
  120. }else{
  121. if($this->page page_change)
  122. {
  123. $i_start = 0;
  124. }else{
  125. $i_start = $this->page - $this->page_change;
  126. //如果最大的页码已显示,那么开始页就不会在递增
  127. if($i_start >= $this->page_max - $this->page_len){
  128. $i_start = $this->page_max - $this->page_len;
  129. }
  130. }
  131. $i_end = ($i_start+$this->page_len) - 1;
  132. for ($i = $i_start; $i {
  133. if($this->page_no_array[$i] == $this->page)
  134. {
  135. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  136. }else{
  137. if($i == 0)
  138. {
  139. $page_one = substr($this->URL,0,strlen($this->URL)-1);
  140. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  141. }else{
  142. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  143. }
  144. }
  145. $page_array .= $the[$i].$separator;
  146. }
  147. if($both_sides === false)
  148. {
  149. $page_array = substr($page_array,0,strrpos($page_array, $separator));
  150. }elseif ($both_sides === true){
  151. $page_array = $separator.$page_array;
  152. }else{
  153. throw new Exception('ERROR: $both_sides must be a boolean type.');
  154. }
  155. }
  156. return $page_array;
  157. }
  158. private function next($next_format = '下一页')

  159. {
  160. if($this->page >= $this->page_max) return $next_format."\r\n";
  161. return ''.$next_format.''."\r\n";
  162. }
  163. private function end($end_format = '最后一页')

  164. {
  165. return $this->page >= $this->page_max ? $end_format."\r\n" : ''.$end_format.''."\r\n";
  166. }
  167. public function select_page($target='self', $select_page_mode='PMA', $value_left_modifier='', $value_right_modifier='')

  168. {
  169. if($this->page_max != 1 && $this->page_all_no != 0)
  170. {
  171. if($select_page_mode === 'NORMAL')
  172. {
  173. $page_no_array = $this->page_no_array;
  174. }elseif($select_page_mode === 'PMA'){
  175. $page_no_array = $this->PMA_page_no_array();
  176. }else{
  177. throw new Exception('$select_page_mode is unknown mode');
  178. }
  179. $select_page = '';
  180. $select_page .= ''. "\n";
  181. return $select_page;
  182. }else{
  183. return NULL;
  184. }
  185. }
  186. private function PMA_page_no_array()

  187. {
  188. $showAll = 200;
  189. $sliceStart = 5;
  190. $sliceEnd = 5;
  191. $percent = 20;
  192. $range = 10;
  193. if ($this->page_max $this->PMA_page_no_array = range(1, $this->page_max);

  194. } else {
  195. $this->PMA_page_no_array = array();
  196. for ($i = 1; $i $this->PMA_page_no_array[] = $i;
  197. }
  198. for ($i = $this->page_max - $sliceEnd; $i page_max; $i++) {
  199. $this->PMA_page_no_array[] = $i;
  200. }
  201. $i = $sliceStart;
  202. $x = $this->page_max - $sliceEnd;
  203. $met_boundary = false;
  204. while ($i if ($i >= ($this->page - $range) && $i page + $range)) {
  205. $i++;
  206. $met_boundary = true;
  207. } else {
  208. $i = $i + floor($this->page_max / $percent);
  209. if ($i > ($this->page - $range) && !$met_boundary) {
  210. $i = $this->page - $range;
  211. }
  212. }
  213. if ($i > 0 && $i $this->PMA_page_no_array[] = $i;
  214. }
  215. }
  216. sort($this->PMA_page_no_array);
  217. $this->PMA_page_no_array = array_unique($this->PMA_page_no_array);
  218. }
  219. return $this->PMA_page_no_array;
  220. }
  221. public function key_change_page(){

  222. echo '';
  223. }
  224. public function eshow()

  225. {
  226. return $this->last().$this->next();
  227. }
  228. public function showForHelp()

  229. {
  230. return $this->first('首页', '').$this->last('上一页', '').$this->page_num_format('', '', '', false, '#FF8500').$this->next('下一页', '').$this->end('尾页', '');
  231. }
  232. public function show()

  233. {
  234. return $this->header_info().$this->first('首页', '').$this->last('上一页', '').$this->page_num_format('', '', '', false, '#FF8500').$this->next('下一页', '').$this->end('尾页', '');
  235. }
  236. }
复制代码

2,php分页类的使用方法:

  1. header('content-type:text/html;charset=utf-8');
  2. include('Page.class.php');
  3. $page_all_no = 12000; //数据的总条数
  4. $page_num = 25; //设置每页显示的条数
  5. $page_len = 7; //最多显示的页码数
  6. $page = new Page($page_all_no, $page_num, $page_len);
  7. $start_num = $page->start_num;
  8. $sql = "select * from table limit {$start_num}, {$page_num}";
  9. $page->key_change_page(); //方向键翻页
  10. var_dump($sql);
  11. //自带三种分页形式,可再按需要添加新方法,像下面那样调用
  12. echo '

    '.$page->select_page('self', 'NORMAL').'

    '; //这里的第二个参数默认为PMA模式,两种模式差别在上面已给出
  13. echo '

    '.$page->eshow().'

    ';
  14. echo '

    '.$page->show().'

    ';
复制代码

3,php分页类,效果图: 一个php分页类代码(附效果图)