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封装好的PHP分页类，简单好用

程序员文章站 2022-06-04 18:16:43
...
class Pagination 独立分页类
调用方式：
$pagenation = new Pagination( 4, 10, 200 ); // 4(第一个参数) = currentPage, 10(第二个参数) = pageSize, 200(第三个参数) = 总数
$pagenation->set_link( 'http://www.360hqb.com' );
$pagenation->show();

  1. /**
  2. * class Pagination
  3. *
  4. * 独立分页类
  5. * 调用方式：
  6. * $pagenation = new Pagination( 4, 10, 200 ); // 4(第一个参数) = currentPage, 10(第二个参数) = pageSize, 200(第三个参数) = 总数
  7. * $pagenation->set_link( 'http://www.360hqb.com' );
  8. * $pagenation->show();
  9. */
  10. class Java_Pagination
  11. {
  12. protected $_total = 0;
  13. protected $_total_page = 0;
  14. protected $_page = 1;
  15. protected $_page_size = 10;
  16. protected $_link = '';
  17. protected $_grep = 3;
  19. protected $_admin = false;
  20. protected $_css_next = 'next-page';
  21. protected $_css_prev = 'prev-page';
  22. protected $_css_curr = 'curr-page';
  23. protected $_css_page = 'page-nav inline-block';
  25. public function __construct ( $page, $page_size, $total, $admin = false )
  26. {
  27. $this->set_current_page( $page );
  28. $this->set_page_size( $page_size );
  29. $this->set_total( $total );
  31. if ( $admin )
  32. {
  33. $this->_admin = $admin;
  34. }
  35. //$this->_link = $_SERVER['REQUEST_URI'];
  36. $this->set_link( $_SERVER['REQUEST_URI'] );
  37. }
  39. public function set_link ( $link, $is_shop = TRUE )
  40. {
  41. $len = strlen( $link );
  42. $substr = substr( $link, $len - 1 );
  43. if ( '&' == $substr )
  44. {
  45. $link = substr( $link, 0, $len - 1 );
  46. }
  47. $pos = strpos( $link, '?' );
  48. if ( $pos )
  49. {
  50. $link = substr( $link, 0, $pos );
  51. }
  52. if ( !empty( $_GET ) )
  53. {
  54. $link .= '?';
  55. foreach ( $_GET as $k=>$v )
  56. {
  57. if ( 'page' == strtolower( $k ) )
  58. {
  59. continue;
  60. }
  61. $link .= $k.'='.$v.'&';
  62. }
  63. $len = strlen( $link );
  64. $substr = substr( $link, $len - 1 );
  65. if ( '&' == $substr )
  66. {
  67. $link = substr( $link, 0, $len - 1);
  68. }
  69. }
  70. elseif ( isset( $_SERVER['QUERY_STRING'] ) AND !empty( $_SERVER['QUERY_STRING'] ) AND $is_shop )
  71. {
  72. $link .= '?'.$_SERVER['QUERY_STRING'];
  73. $len = strlen( $link );
  74. $substr = substr( $link, $len - 1 );
  75. if ( '&' == $substr )
  76. {
  77. $link = substr( $link, 0, $len - 1);
  78. }
  79. }
  80. $this->_link = $link;
  81. }
  83. public function set_page_size ( $page_size )
  84. {
  85. if ( empty( $page_size ) )
  86. {
  87. $this->_page_size = 10;
  88. }
  89. else
  90. {
  91. $this->_page_size = (int) $page_size;
  92. }
  93. }
  95. public function set_total ( $total )
  96. {
  97. $page_size = empty( $this->_page_size )?10:$this->_page_size;
  98. $this->_total = $total;
  99. if ( 0 == ( $total % $page_size ) )
  100. {
  101. $this->_total_page = intval( $total / $page_size );
  102. }
  103. else
  104. {
  105. $this->_total_page = intval( $total / $page_size ) + 1;
  106. }
  107. if ( $this->_page > $this->_total_page )
  108. {
  109. $this->_page = $this->_total_page;
  110. }
  111. }
  113. public function set_current_page ( $page )
  114. {
  115. if ( empty( $page ) )
  116. {
  117. $this->_page = 1;
  118. }
  119. else
  120. {
  121. $this->_page = (int) $page;
  122. }
  123. }
  125. public function get_next_page_btn ()
  126. {
  127. if ( $this->_page _total_page )
  128. {
  129. $link = '';
  130. if ( strpos( $this->_link, '?' ) )
  131. {
  132. $link = $this->_link.'&page='.( $this->_page + 1 );
  133. }
  134. else
  135. {
  136. $link = $this->_link.'?page='.( $this->_page + 1 );
  137. }
  138. if ( $this->_admin )
  139. {
  140. return '下一页';
  141. }
  142. else
  143. {
  144. return '
  145. 下一页
    146. ';
  146. }
  147. }
  148. if ( $this->_admin )
  149. return '下一页 ?';
  150. else
  151. return '';
  152. }
  154. public function get_prev_page_btn ()
  155. {
  156. if ( $this->_page > 1 )
  157. {
  158. $link = '';
  159. if ( strpos( $this->_link, '?' ) )
  160. {
  161. $link = $this->_link.'&page='.( $this->_page - 1 );
  162. }
  163. else
  164. {
  165. $link = $this->_link.'?page='.( $this->_page - 1 );
  166. }
  167. if ( $this->_admin )
  168. {
  169. return '上一页';
  170. }
  171. else
  172. {
  173. return '
  174. 上一页
    175. ';
  175. }
  176. }
  177. if ( $this->_admin )
  178. return '? 上一页';
  179. else
  180. return '';
  181. }
  183. public function get_current_page ()
  184. {
  185. if ( $this->_admin )
  186. return ''.$this->_page.'';
  187. else
  188. return '
  189. '.$this->_page.'
    190. ';
  190. }
  192. public function get_page_link ( $page )
  193. {
  194. $link = '';
  195. if ( strpos( $this->_link, '?' ) )
  196. {
  197. $link = $this->_link.'&page='.$page;
  198. }
  199. else
  200. {
  201. $link = $this->_link.'?page='.$page;
  202. }
  203. if ( $this->_admin )
  204. {
  205. return ''.$page.'';
  206. }
  207. else
  208. {
  209. return '
  210. '.$page.'
    211. ';
  211. }
  212. }
  214. public function get_prev_pages ()
  215. {
  216. $pages = array();
  217. $begin = $this->_page - $this->_grep;
  218. if ( $begin {
  219. $begin = 1;
  220. }
  221. elseif ( $begin > 2 )
  222. {
  223. $pages[] = $this->get_page_link( 1 );
  224. if ( $this->_admin )
  225. {
  226. $pages[] = ' ... ';
  227. }
  228. else
  229. {
  230. $pages[] = '
  231. ...
    232. ';
  232. }
  233. }
  234. elseif ( $begin == 2 )
  235. {
  236. $pages[] = $this->get_page_link( 1 );
  237. }
  238. for ( $i = $begin; $i _page; $i++ )
  239. {
  240. $pages[] = $this->get_page_link( $i );
  241. }
  242. return $pages;
  243. }
  245. public function get_next_pages ()
  246. {
  247. $pages = array();
  248. $begin = $this->_page + 1;
  249. if ( $begin _total_page )
  250. {
  251. $end = $begin + $this->_grep;
  252. if ( $end > $this->_total_page )
  253. {
  254. $end = $this->_total_page;
  255. }
  256. for ( $i = $begin; $i {
  257. $pages[] = $this->get_page_link( $i );
  258. }
  259. if ( $i _total_page )
  260. {
  261. if ( $this->_admin )
  262. {
  263. $pages[] = ' ... ';
  264. }
  265. else
  266. {
  267. $pages[] = '
  268. ...
    269. ';
  269. }
  270. $pages[] = $this->get_page_link( $this->_total_page );
  271. }
  272. else
  273. {
  274. $pages[] = $this->get_page_link( $this->_total_page );
  275. }
  276. }
  277. elseif ( $begin == $this->_total_page )
  278. {
  279. $pages[] = $this->get_page_link( $this->_total_page );
  280. }
  281. return $pages;
  282. }
  284. public function show ()
  285. {
  286. if ( $this->_total_page {
  287. return;
  288. }
  289. if ( $this->_admin )
  290. {
  291. echo '

    ';

  292. echo '共有'.$this->_total.'条记录';
  293. }
  294. else
  295. {
  296. echo '
      ';
    • }
    • echo $this->get_prev_page_btn();
    • $prev_pages = $this->get_prev_pages ();
    • if ( !empty( $prev_pages ) )
    • {
    • foreach ( $prev_pages as $page )
    • {
    • echo $page;
    • }
    • }
    • echo $this->get_current_page();
    • $next_pages = $this->get_next_pages ();
    • if ( !empty( $next_pages ) )
    • {
    • foreach ( $next_pages as $page )
    • {
    • echo $page;
    • }
    • }
    • echo $this->get_next_page_btn();
    • if ( $this->_admin )
    • {
    • echo '';
    • }
    • else
    • {
    • echo '
    ';
  297. }
  298. }
  299. }
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