这是一款php分页代码是一款经典的可自动判断url参数再进行分页的实例代码,同时自定了上页,下页,首页,尾页,同时还支持select下拉框跳转代码.

php 经典的分页代码类代码如下:

1. class page{
2. var $page_name="page";
3. var $next_page='下一页';
4. var $pre_page='上一页';
5. var $first_page='首页';
6. var $last_page='尾页';
7. var $pre_bar='<<';
8. var $next_bar='>>';
9. var $format_left='';
10. var $format_right='';
11. var $pagebarnum=5;
12. var $totalpage=0;
13. var $nowindex=1;
14. var $url="";
15. var $offset=0;
16. var $rewrite = array();
17. function page($array)
18. {
19. if(is_array($array)){
20. if(!array_key_exists('total',$array))$this->error(__function__,'need a param of total');
21. $total=intval($array['total']);
22. $perpage=(array_key_exists('perpage',$array))?intval($array['perpage']):10;
23. $nowindex=(array_key_exists('nowindex',$array))?intval($array['nowindex']):'';
24. $url=(array_key_exists('url',$array))?$array['url']:'';
25. $action = (array_key_exists('action', $array)) ? $array['action'] : '';
26. $id0 = (array_key_exists('id0', $array)) ? $array['id0'] : '';
27. $id1 = (array_key_exists('id1', $array)) ? $array['id1'] : '';
28. $id2 = (array_key_exists('id2', $array)) ? $array['id2'] : '';
29. $id3 = (array_key_exists('id3', $array)) ? $array['id3'] : '';
30. }else{
31. $total=$array;
32. $perpage=10;
33. $nowindex='';
34. $url='';
35. $action = '';
36. $id0 = '';
37. $id1 = '';
38. $id2 = '';
39. $id3 = '';
40. }
41. if((!is_int($total))||($total<0))$this->error(__function__,$total.' is not a positive integer!');
42. if((!is_int($perpage))||($perpage<=0))$this->error(__function__,$perpage.' is not a positive integer!');
43. if(!emptyempty($array['page_name']))$this->set('page_name',$array['page_name']);
44. $this->_set_nowindex($nowindex);
45. $this->_set_url($url);
46. $this->totalpage=ceil($total/$perpage);
47. $this->offset=($this->nowindex-1)*$perpage;
48. $this->action = $action;
49. $this->rewrite = array('action'=>$action,'id0'=>$id0, 'id1'=>$id1, 'id2'=>$id2, 'id3'=>$id3);
50. }
51. function set($var,$value)
52. {
53. if(in_array($var,get_object_vars($this)))
54. $this->$var=$value;
55. else {
56. $this->error(__function__,$var." does not belong to pb_page!");
57. }
58. }
59. function next_page($){
60. if($this->nowindex<$this->totalpage){
61. return $this->_get_link($this->_get_url($this->nowindex+1),$this->next_page,$style);
62. }
63. return '<a class="'.$style.'">'.$this->next_page.'</a>';
64. }
65. function pre_page($){
66. if($this->nowindex>1){
67. return $this->_get_link($this->_get_url($this->nowindex-1),$this->pre_page,$style);
68. }
69. return '<a class="'.$style.'">'.$this->pre_page.'</a>';
70. }
71. function first_page($){
72. if($this->nowindex==1){
73. return '<a class="'.$style.'">'.$this->first_page.'</a>';
74. }
75. return $this->_get_link($this->_get_url(1),$this->first_page,$style);
76. }
77. function last_page($){
78. if($this->nowindex==$this->totalpage||$this->totalpage==0){
79. return '<a class="'.$style.'">'.$this->last_page.'</a>';
80. }
81. return $this->_get_link($this->_get_url($this->totalpage),$this->last_page,$style);
82. }
83. function nowbar($,$nowindex_)
84. {
85. $plus=ceil($this->pagebarnum/2);
86. if($this->pagebarnum-$plus+$this->nowindex>$this->totalpage)$plus=($this->pagebarnum-$this->totalpage+$this->nowindex);
87. $begin=$this->nowindex-$plus+1;
88. $begin=($begin>=1)?$begin:1;
89. $return='';
90. for($i=$begin;$i<$begin+$this->pagebarnum;$i++)
91. {
92. if($i<=$this->totalpage){
93. if($i!=$this->nowindex)
94. $return.=$this->_get_text($this->_get_link($this->_get_url($i),$i,$style));
95. else
96. $return.=$this->_get_text('<a class="'.$nowindex_style.'">'.$i.'</a>');
97. }else{
98. break;
99. }
100. $return.=" ";
101. }
102. unset($begin);
103. return $return;
104. }
105. /**
106. * 获取显示跳转按钮的代码
107. *
108. * @return string
109. */
110. function select()
111. {
112. $return='<select name="pb_page_select">';
113. for($i=1;$i<=$this->totalpage;$i++)
114. {
115. if($i==$this->nowindex){
116. $return.='<option value="'.$i.'" selected>'.$i.'</option>';
117. }else{
118. $return.='<option value="'.$i.'">'.$i.'</option>';
119. }
120. }
121. unset($i);
122. $return.='</select>';
123. return $return;
124. }
125. /**
126. * 获取mysql教程 语句中limit需要的值
127. *
128. * @return string
129. */
130. function offset()
131. {
132. return $this->offset;
133. }
134. /**
135. * 控制分页显示风格（你可以增加相应的风格）
136. *
137. * @param int $mode
138. * @return string
139. */
140. function show($mode=1)
141. {
142. switch ($mode)
143. {
144. case '1':
145. $this->next_page='下一页';
146. $this->pre_page='上一页';
147. return $this->pre_page().$this->nowbar().$this->next_page().'第'.$this->select().'页';
148. break;
149. case '2':
150. $this->next_page='下一页';
151. $this->pre_page='上一页';
152. $this->first_page='首页';
153. $this->last_page='尾页';
154. return $this->first_page().$this->pre_page().'[第'.$this->nowindex.'页]'.$this->next_page().$this->last_page().'第'.$this->select().'页';
155. break;
156. case '3':
157. $this->next_page='下一页';
158. $this->pre_page='上一页';
159. $this->first_page='首页';
160. $this->last_page='尾页';
161. return $this->first_page("page_box")."".$this->pre_page("page_box")."".$this->nowbar("page_box_a","page_box_b")."".$this->next_page("page_box")."".$this->last_page("page_box")."<a class="clear"></a>";
162. break;
163. case '4':
164. $this->next_page='下一页';
165. $this->pre_page='上一页';
166. return $this->pre_page().$this->nowbar().$this->next_page();
167. break;
168. case '5':
169. return $this->pre_bar().$this->pre_page().$this->nowbar().$this->next_page().$this->next_bar();
170. break;
171. }
172. }
173. function _set_url($url="")
174. {
175. if(!emptyempty($url)){
176. $this->url=$url.((stristr($url,'?'))?'&':'?').$this->page_name."=";
177. }else{
178. if(emptyempty($_server['query_string'])){
179. $this->url=$_server['request_uri']."?".$this->page_name."=";
180. }else{
181. if(stristr($_server['query_string'],$this->page_name.'=')){
182. $this->url=str_replace($this->page_name.'='.$this->nowindex,'',$_server['request_uri']);
183. $last=$this->url[strlen($this->url)-1];
184. if($last=='?'||$last=='&'){
185. $this->url.=$this->page_name."=";
186. }else{
187. $this->url.='&'.$this->page_name."=";
188. }
189. }else{
190. $this->url=$_server['request_uri'].'&'.$this->page_name.'=';
191. }
192. }
193. }
194. }
195. function _set_nowindex($nowindex)
196. {
197. if(emptyempty($nowindex)){
198. if(isset($_get[$this->page_name])){
199. $this->nowindex=intval($_get[$this->page_name]);
200. }
201. }else{
202. $this->nowindex=intval($nowindex);
203. }
204. }
205. function _get_url($pageno=1)
206. {
207. global $_cfg;
208. $arr = $this->rewrite;
209. //print_r($arr);
210. //print_r($this->url.$pageno);
211. if($_cfg['urlrewrite'] && !emptyempty($arr['action'])){
212. return url_rewrite($arr['action'], array('id0'=>$arr['id0'],'id1'=>$arr['id1'],'id2'=>$arr['id2'],'id3'=>$arr['id3'],'page'=>$pageno));
213. }else{
214. return $this->url.$pageno;
215. }
216. }
217. function _get_text($str)
218. {
219. return $this->format_left.$str.$this->format_right;
220. }
221. function _get_link($url,$text,$){
222. $':'class="'.$style.'"';
223. return '<a '.$style.' href="'.$url.'">'.$text.'</a>';
224. }
225. function error($function,$errormsg)
226. //开源代码phpfensi.com
227. {
228. die('error in file <b>'.__file__.'</b> ,function <b>'.$function.'()</b> :'.$errormsg);
229. }
230. }