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一个php分页类代码(附效果图)

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2016-07-25 08:52:481074Durchsuche

  3. /**

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

  18. public function __construct($page_all_no, $page_num=5, $page_len=5)

  19. {
  20. $this->page_all_no = intval($page_all_no);
  21. $this->page_num = intval($page_num);
  22. $this->page_len = intval($page_len);
  23. $this->URL = $_SERVER['REQUEST_URI'];
  24. $this->max_page(); //得到页数的最大值
  25. $this->page_no(); //得到当前页数
  26. $this->page_no_array(); //页数数组
  27. $this->start_num(); //得到sql语句中limit的起始值
  28. $this->change_page(); //得到递增开始的页码$this->page_change
  29. $this->getURL(); //得到当前的URL并处理返回
  30. }

  31. private function isArray($str,$str_self)

  32. {
  33. if(!is_array($str)) throw new Exception("$str_self must be an Array type");
  34. }

  35. private function page_no()

  36. {
  37. $this->page = isset($_GET['page']) ? $_GET['page'] : 1;
  38. if(isset($_GET['page']) && $_GET['page'] page = 1;
  39. if(isset($_GET['page']) && $_GET['page'] > $this->page_max) $this->page = $this->page_max;
  40. return $this->page;
  41. }

  42. private function max_page()

  43. {
  44. return $this->page_max = $this->page_all_no page_all_no/$this->page_num);
  45. }

  46. private function change_page()

  47. {
  48. return $this->page_change = ceil($this->page_len / 2);
  49. }

  50. private function page_no_array()

  51. {
  52. return $this->page_no_array = range(1, $this->page_max);
  53. }

  54. private function start_num()

  55. {
  56. return $this->start_num = $this->page_num * ($this->page - 1);
  57. }

  58. private function getURL()

  59. {
  60. if(!empty($_SERVER['argc']) ? $_SERVER['argc'] == 0 : strpos($_SERVER['REQUEST_URI'], '?') === false)
  61. {
  62. $this->URL = $this->URL.'?';
  63. }else{
  64. $url_a = "/\?page=[0-9]{1,}/";
  65. $url_b = "/&page=[0-9]{1,}/";
  66. ereg("\?page=[0-9]{1,}", $this->URL) ? $this->URL = preg_replace($url_a, "?", $this->URL):
  67. ereg("&page=[0-9]{1,}", $this->URL) ? $this->URL = preg_replace($url_b, "&", $this->URL):$this->URL = $this->URL.'&';
  68. }
  69. return $this->URL;
  70. }

  71. 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'){

  72. if($this->page_max != 1 && $this->page_all_no != 0)
  73. {
  74. $header_info = $total_data_modifier.''.$this->page_all_no.'';
  75. $header_info .= $total_page_modifier.''.$this->page_max.'';
  76. $header_info .= $current_page_modifier.''.$this->page.'　'."\r\n";
  77. if(!empty($header_info_modifier)) $header_info = $header_info_modifier.$header_info;
  78. return $header_info;
  79. }else{
  80. return NULL;
  81. }
  82. }

  83. private function first($first_format = '第一页')

  84. {
  85. return $this->page == 1 ? $first_format."\r\n" : ''.$first_format.''."\r\n";
  86. }

  87. private function last($last_format = '上一页')

  88. {
  89. if($this->page == 1) return $last_format."\r\n";
  90. return $this->page-1 == 1 ? ''.$last_format.''."\r\n" : ''.$last_format.''."\r\n";
  91. }

  92. private function page_num_format($separator=' ', $left_modifier='[', $right_modifier=']', $both_sides=false, $current_page_color = 'red')

  93. {
  94. empty($separator) ? $separator = ' ' : $separator;
  95. $page_array = '';
  96. if($this->page_max page_len)
  97. {
  98. for ($i=0; $i page_max; $i++)
  99. {
  100. if($this->page_no_array[$i] == $this->page)
  101. {
  102. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  103. }else{
  104. if($i == 0)
  105. {
  106. $page_one = substr($this->URL,0,strlen($this->URL)-1);
  107. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  108. }else{
  109. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  110. }
  111. }
  112. $page_array .= $the[$i].$separator;
  113. }
  114. if($both_sides === false)
  115. {
  116. $page_array = substr($page_array,0,strrpos($page_array, $separator));
  117. }elseif ($both_sides === true){
  118. $page_array = $separator.$page_array;
  119. }else{
  120. throw new Exception('ERROR: $both_sides must be a boolean type.');
  121. }
  122. }else{
  123. if($this->page page_change)
  124. {
  125. $i_start = 0;
  126. }else{
  127. $i_start = $this->page - $this->page_change;
  128. //如果最大的页码已显示,那么开始页就不会在递增
  129. if($i_start >= $this->page_max - $this->page_len){
  130. $i_start = $this->page_max - $this->page_len;
  131. }
  132. }
  133. $i_end = ($i_start+$this->page_len) - 1;
  134. for ($i = $i_start; $i {
  135. if($this->page_no_array[$i] == $this->page)
  136. {
  137. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  138. }else{
  139. if($i == 0)
  140. {
  141. $page_one = substr($this->URL,0,strlen($this->URL)-1);
  142. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  143. }else{
  144. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
  145. }
  146. }
  147. $page_array .= $the[$i].$separator;
  148. }
  149. if($both_sides === false)
  150. {
  151. $page_array = substr($page_array,0,strrpos($page_array, $separator));
  152. }elseif ($both_sides === true){
  153. $page_array = $separator.$page_array;
  154. }else{
  155. throw new Exception('ERROR: $both_sides must be a boolean type.');
  156. }
  157. }
  158. return $page_array;
  159. }

  160. private function next($next_format = '下一页')

  161. {
  162. if($this->page >= $this->page_max) return $next_format."\r\n";
  163. return ''.$next_format.''."\r\n";
  164. }

  165. private function end($end_format = '最后一页')

  166. {
  167. return $this->page >= $this->page_max ? $end_format."\r\n" : ''.$end_format.''."\r\n";
  168. }

  169. public function select_page($target='self', $select_page_mode='PMA', $value_left_modifier='', $value_right_modifier='')

  170. {
  171. if($this->page_max != 1 && $this->page_all_no != 0)
  172. {
  173. if($select_page_mode === 'NORMAL')
  174. {
  175. $page_no_array = $this->page_no_array;
  176. }elseif($select_page_mode === 'PMA'){
  177. $page_no_array = $this->PMA_page_no_array();
  178. }else{
  179. throw new Exception('$select_page_mode is unknown mode');
  180. }
  181. $select_page = '';
  182. $select_page .= ''. "\n";
  183. return $select_page;
  184. }else{
  185. return NULL;
  186. }
  187. }

  188. private function PMA_page_no_array()

  189. {
  190. $showAll = 200;
  191. $sliceStart = 5;
  192. $sliceEnd = 5;
  193. $percent = 20;
  194. $range = 10;

  195. if ($this->page_max $this->PMA_page_no_array = range(1, $this->page_max);

  196. } else {
  197. $this->PMA_page_no_array = array();
  198. for ($i = 1; $i $this->PMA_page_no_array[] = $i;
  199. }
  200. for ($i = $this->page_max - $sliceEnd; $i page_max; $i++) {
  201. $this->PMA_page_no_array[] = $i;
  202. }
  203. $i = $sliceStart;
  204. $x = $this->page_max - $sliceEnd;
  205. $met_boundary = false;
  206. while ($i if ($i >= ($this->page - $range) && $i page + $range)) {
  207. $i++;
  208. $met_boundary = true;
  209. } else {
  210. $i = $i + floor($this->page_max / $percent);
  211. if ($i > ($this->page - $range) && !$met_boundary) {
  212. $i = $this->page - $range;
  213. }
  214. }
  215. if ($i > 0 && $i $this->PMA_page_no_array[] = $i;
  216. }
  217. }
  218. sort($this->PMA_page_no_array);
  219. $this->PMA_page_no_array = array_unique($this->PMA_page_no_array);
  220. }
  221. return $this->PMA_page_no_array;
  222. }

  223. public function key_change_page(){

  224. echo '';
  225. }

  226. public function eshow()

  227. {
  228. return $this->last().$this->next();
  229. }

  230. public function showForHelp()

  231. {
  232. 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', '');
  233. }

  234. public function show()

  235. {
  236. 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', '');
  237. }
  238. }
复制代码

2，php分页类的使用方法：

  2. header('content-type:text/html;charset=utf-8');
  3. include('Page.class.php');
  4. $page_all_no = 12000; //数据的总条数
  5. $page_num = 25; //设置每页显示的条数
  6. $page_len = 7; //最多显示的页码数
  7. $page = new Page($page_all_no, $page_num, $page_len);
  8. $start_num = $page->start_num;
  9. $sql = "select * from table limit {$start_num}, {$page_num}";
  10. $page->key_change_page(); //方向键翻页
  11. var_dump($sql);
  12. //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
  13. 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
  14. echo '

    '.$page->eshow().'

    ';
  15. echo '

    '.$page->show().'

    ';
复制代码

3，php分页类，效果图： php分页类代码



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