一个php分页类代码(附效果图)

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'] < 1) $this->page = 1;
39. if(isset($_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 = $this->page_all_no <= 0 ? 1 : ceil($this->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 ? $first_format."\r\n" : 'URL,0,strlen($this->URL)-1).'">'.$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 $this->page-1 == 1 ? 'URL,0,strlen($this->URL)-1).'">'.$last_format.''."\r\n" : 'URL.'page='.($this->page - 1).'">'.$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 <= $this->page_len)
97. {
98. for ($i=0; $i < $this->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] = 'URL.'page='.$this->page_no_array[$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 <= $this->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 <= $i_end; $i++)
135. {
136. if($this->page_no_array[$i] == $this->page)
137. {
138. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
139. }else{
140. if($i == 0)
141. {
142. $page_one = substr($this->URL,0,strlen($this->URL)-1);
143. $the[$i] = ''.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
144. }else{
145. $the[$i] = 'URL.'page='.$this->page_no_array[$i].'">'.$left_modifier.$this->page_no_array[$i].$right_modifier.''."\r\n";
146. }
147. }
148. $page_array .= $the[$i].$separator;
149. }
150. if($both_sides === false)
151. {
152. $page_array = substr($page_array,0,strrpos($page_array, $separator));
153. }elseif ($both_sides === true){
154. $page_array = $separator.$page_array;
155. }else{
156. throw new Exception('ERROR: $both_sides must be a boolean type.');
157. }
158. }
159. return $page_array;
160. }

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

162. {
163. if($this->page >= $this->page_max) return $next_format."\r\n";
164. return 'URL.'page='.($this->page + 1).'">'.$next_format.''."\r\n";
165. }

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

167. {
168. return $this->page >= $this->page_max ? $end_format."\r\n" : 'URL.'page='.$this->page_max.'">'.$end_format.''."\r\n";
169. }

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

171. {
172. if($this->page_max != 1 && $this->page_all_no != 0)
173. {
174. if($select_page_mode === 'NORMAL')
175. {
176. $page_no_array = $this->page_no_array;
177. }elseif($select_page_mode === 'PMA'){
178. $page_no_array = $this->PMA_page_no_array();
179. }else{
180. throw new Exception('$select_page_mode is unknown mode');
181. }
182. $select_page = '';
183. $select_page .= ''. "\n";
     foreach($page_no_array as $value)
     {
     if($value == 1)
     {
     $false_url = substr($this->URL,0,strlen($this->URL)-1);
     $select_page .= '
     '.$value_left_modifier.$value.$value_right_modifier.''. "\n";
     }else{
     if($value == $this->page){
     $select_page .= '
     '.$value_left_modifier.$value.$value_right_modifier.''. "\n";
     }else{
     $select_page .= '
     '.$value_left_modifier.$value.$value_right_modifier.''. "\n";
     }
     }
     }
     $select_page .= '
     '. "\n";
184. return $select_page;
185. }else{
186. return NULL;
187. }
188. }

189. private function PMA_page_no_array()

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

196. if ($this->page_max < $showAll){

197. $this->PMA_page_no_array = range(1, $this->page_max);
198. } else {
199. $this->PMA_page_no_array = array();
200. for ($i = 1; $i <= $sliceStart; $i++) {
201. $this->PMA_page_no_array[] = $i;
202. }
203. for ($i = $this->page_max - $sliceEnd; $i <= $this->page_max; $i++) {
204. $this->PMA_page_no_array[] = $i;
205. }
206. $i = $sliceStart;
207. $x = $this->page_max - $sliceEnd;
208. $met_boundary = false;
209. while ($i <= $x) {
210. if ($i >= ($this->page - $range) && $i <= ($this->page + $range)) {
211. $i++;
212. $met_boundary = true;
213. } else {
214. $i = $i + floor($this->page_max / $percent);
215. if ($i > ($this->page - $range) && !$met_boundary) {
216. $i = $this->page - $range;
217. }
218. }
219. if ($i > 0 && $i <= $x) {
220. $this->PMA_page_no_array[] = $i;
221. }
222. }
223. sort($this->PMA_page_no_array);
224. $this->PMA_page_no_array = array_unique($this->PMA_page_no_array);
225. }
226. return $this->PMA_page_no_array;
227. }

228. public function key_change_page(){

229. echo '';
230. }

231. public function eshow()

232. {
233. return $this->last().$this->next();
234. }

235. public function showForHelp()

236. {
237. 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', '');
238. }

239. public function show()

240. {
241. 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', '');
242. }
243. }

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().'

    ';

3，php分页类，效果图：