php分页程序paginator程序代码
发布时间：2022-06-23 09:09:58 所属栏目：PHP教程 来源：互联网
导读：?php class paginator { function __construct () { } static function render($page_type, array $args = array()) { $html = ; switch ($page_type) { case 1: $html = page_1($channel_code, $page_num, $cur_page, $per_group, $base_url, $n, $v); brea
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<?php class paginator { function __construct () { } static function render($page_type, array $args = array()) { $html = ''; switch ($page_type) { case '1': $html = page_1($channel_code, $page_num, $cur_page, $per_group, $base_url, $n, $v); break; case '2': $html = fpage($row_num, $pagesize, $page, $url); break; case '3': break; default: $html = page($num, $perpage, $curpage, $mpurl, $hiddenFrom=''); } return $html; } //函数1:根据总页数,当前页,和页分组及url产生分页导航 function page_1($channel_code, $page_num, $cur_page, $per_group, $base_url, $n, $v) { // 分页函数参数列表(有多少页,当前页,每页多少个 ,链接地址) $base_url .= strpos($base_url, '?') ? '&' : '?'; //如果有?，则添加&,否则加？ $page_val = ""; if ($page_num < 1) { return $page_val; //如果小于1,返回空 } elseif ($page_num == 1) { return $page_val = 1; //如果等于1,返回1 } //分组 $group_ok = !(($page_num-1) % ($per_group-1)); //没有余数 // 计算一共有多少组 if($group_ok) { $group_num = ($page_num-1)/($per_group-1); }else { $group_num = ceil(($page_num-1) / ($per_group-1)); } //判断当前页是否为一组的最后一个 //组数 $is_last_page = !(($cur_page-1) % ($per_group-1)); //计算当前在的组数 if ($is_last_page) { $cur_group = ($cur_page-1) / ($per_group-1) + 1; } else { $cur_group = ceil(($cur_page-1) / ($per_group-1)); } // 计算显示的起始页 ，这个关键 $from = ($cur_group - 1) * ($per_group-1) + 1; $from = $cur_group <= 1 ? 1 :$from; $to = $from + $per_group; $to = $to > $page_num ? $page_num + 1 : $to; for($a = $from; $a < $to; $a++) { if ($a != $cur_page) { //不是当前页 $page_val .= '<li><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $a . '">' . $a . '</a></li>'; } else { //当前页 $page_val .='<li class="current">'. $a .'</li>'; } } //上一页下一页首页尾页 $next = $cur_page + 1; //当前页+1 $prev = $cur_page-1; //当前页-1 if ($cur_page != $page_num) { //当前页不是最后一页 $page_val .= '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $next . '">' . '下一页' . '</a></span>'; $page_val .= '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $page_num . '">' . '>>' . '</a></span>'; //尾页 } if ($cur_page != 1){ //不是第一页,加上前面的内容 $page_val = '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=' . $prev . '">' . '上一页' . '</a></span>' . $page_val; $page_val = '<span><a href ="' . $base_url . 'channel='.$channel_code.'&n='.$n.'&v='.$v.'&page=1">' . '<<' . '</a></span>' . $page_val; //首页 } $page_val = '<ul class="page_nav">'.$page_val.'</ul>'; return $page_val; } // 函数2：根据记录数，页列清数，当前页，url年成分页 function fpage($row_num, $pagesize, $page, $url) { //$page,当前页;$row_num记录总数;$pagesize:每页记录数;$url记录页; //如果,如果有作数,则取加1 $page_count = $row_num % $pagesize?intval($row_num / $pagesize) + 1:intval($row_num / $pagesize); if ($page_count == 1) { $page_string = "第一页|上一页|下一页|尾页"; } else { //如果不止一页 if ($page == 1) { //第一页显示 $page_string = " <a href=" . $url . "?page=1>第一页 </a>|上一页| <a href=" . $url . "?page=" . ($page + 1) . ">下一页 </a>| <a href=" . $url . "?page=" . $page_count . ">尾页 </a>"; } if (($page > 1) and ($page < $page_count)) { $page_string = " <a href=" . $url . "?page=1>第一页 </a>| <a href=" . $url . "?page=" . ($page-1) . ">上一页 </a>| <a href=" . $url . "?page=" . ($page + 1) . ">下一页 </a>| <a href=" . $url . "?page=" . $page_count . ">尾页 </a>"; } if ($page == $page_count) { $page_string = " <a href=" . $url . "?page=1>第一页 </a>| <a href=" . $url . "?page=" . ($page-1) . ">上一页 </a>|下一页| <a href=" . $url . "?page=" . $page_count . ">尾页 </a>"; } } $page_str = $page_string . ("," . $page . "/" . $page_count . "页"); echo " <br> <p align=center>" . $page_str . " </p>"; } /** * 分页函数 * * @param int $num:记录总数 * @param int $perpage:每页记录 * @param int $curpage:当前页 * @param string $mpurl:路径url * @param unknown_type $hiddenFrom * @return string */ function page($num, $perpage, $curpage, $mpurl,$hiddenFrom='') { $multipage = ''; //恢复 $mpurl .= strpos($mpurl, '?') ? '&' : '?'; if($num > $perpage) { $page = 10; $offset = 2; $pages = @ceil($num / $perpage); //总页数 if($page > $pages) { $from = 1; $to = $pages; } else { //如果总页数>10 $from = $curpage - $offset; //当前页-2 $to = $from + $page - 1; //当前页+10-3 if($from < 1) { $to = $curpage + 1 - $from; $from = 1; if($to - $from < $page) { $to = $page; } } elseif($to > $pages) { $from = $pages - $page + 1; $to = $pages; } } if ($hiddenFrom) { $multipage = ($curpage - $offset > 1 && $pages > $page ? '<a href="#" '.js_page($hiddenFrom,1).'>首页</a> ' : ''). ($curpage > 1 ? ' <a href="#" '.js_page($hiddenFrom,$curpage - 1).'>‹‹上一页</a> ' : ''); for($i = $from; $i <= $to; $i++) { $multipage .= $i == $curpage ? '<span>'.$i.'</span> ' : '<a href="#" '.js_page($hiddenFrom,$i).'>'.$i.'</a> '; } $multipage .= ($curpage < $pages ? '<a href="#" '.js_page($hiddenFrom,$curpage + 1).'>下一页››</a>' : ''). ($to < $pages ? '<a href="#" '.js_page($hiddenFrom,$pages).'> 末页</a>' : ''); $multipage = $multipage ? '<div class="list-page">'.$multipage.'</div>' : ''; } else { $multipage = ($curpage - $offset > 1 && $pages > $page ? '<a href="'.$mpurl.'page=1">首页</a> ' : ''). ($curpage > 1 ? ' <a href="'.$mpurl.'page='.($curpage - 1).'">‹‹上一页</a> ' : ''); for($i = $from; $i <= $to; $i++) { $multipage .= $i == $curpage ? '<span>'.$i.'</span> ' : '<a href="'.$mpurl.'page='.$i.'">'.$i.'</a> '; } $multipage .= ($curpage < $pages ? '<a href="'.$mpurl.'page='.($curpage + 1).'">下一页››</a>' : ''). ($to < $pages ? '<a href="'.$mpurl.'page='.$pages.'"> 末页</a>' : ''); $multipage = $multipage ? '<div class="list-page">'.$multipage.'</div>' : ''; } } return $multipage; } //暂不用 function page_get_start($page, $ppp, $totalnum) { $totalpage = ceil($totalnum / $ppp); $page = max(1, min($totalpage, intval($page))); return ($page - 1) * $ppp; } //暂不用 function js_page($hiddenFrom,$page) { if ($hiddenFrom) { return ' onclick=javascript：$("#page").val("'.$page.'");$("#'.$hiddenFrom.'").submit(); '; } } } ?> （编辑：黔东南站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
