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86 lines
3.4 KiB
86 lines
3.4 KiB
<?php
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//include_once(dirname(dirname(__FILE__))."/publicBase.php");
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class Page extends publicBase {
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public $totalnum; // 总记录数[必填],例:$page->setTotalnum(100);
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public $page; // 当前页码[必填]
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public $url; // 分页URL[必填]
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public $pagesize=20; // 每页记录数
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public $viewpagenum=7; // 每页看到的页码数
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public $virtualpage='...'; // 省略或跨越页码
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public $totalpage;
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//mysql表中数据量过多时采用的分页改造
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public $first_page_url; //点击”首页“跳转链接
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public $end_page_url; //点击”尾页“跳转链接
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public $prev_page_url; //点击”上一页“跳转链接
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public $next_page_url; //点击”下一页“跳转链接
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public $endpage=false; //跳转到尾页标识
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public $jump_to_page_url; //跳转到某一页链接
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public $maxid; //点击上一页时 当前页面最大id
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public $minid; //点击下一页时 当前页面最小id
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/*
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* $pageobj = new Page();
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$pageobj->setTotalnum($totalnum);
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$pageobj->setPage($page);
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$pageobj->setPagesize($pagesize);
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$pageobj->setUrl('/comment/black/page/');
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$plist = $pageobj->getPageList();
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*/
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/*
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listnum 显示页码数, 默认展示7页
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*/
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public function getPageList() {
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$pagelist = array(); // 构造的翻页数据
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$begin = $last = array(); // 开始,结尾数据
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$totalpage = ceil($this->totalnum/$this->pagesize); // 总页数
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$this->totalpage = $totalpage;
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$middle_page = ceil($this->viewpagenum/2); // 每页中间页码值
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if($this->page > $middle_page && $totalpage > $this->viewpagenum) { // 开头有...时
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$begin[] = array('page' => 1, 'url' => $this->url . '1');
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$begin[] = array('page' => $this->virtualpage, 'url' => '');
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$firstpage = $totalpage-$this->viewpagenum+2;
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$endpage = $totalpage;
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if($totalpage-$this->page > $middle_page) { // 结尾也有...时
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$last[$totalpage-1] = array('page' => $this->virtualpage, 'url'=>'');
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$last[$totalpage] = array('page' => $totalpage, 'url' => $this->url . $totalpage);
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$firstpage = $this->page-$middle_page+2;
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$endpage = $this->page+$middle_page-2;
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}
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} elseif($totalpage-$this->page > $middle_page && $totalpage > $this->viewpagenum) { // 只有结尾的...时
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$last[$totalpage-1] = array('page' => $this->virtualpage, 'url' => '');
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$last[$totalpage] = array('page' => $totalpage, 'url' => $this->url . $totalpage);
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$firstpage = 1;
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$endpage = $this->viewpagenum-1;
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} else { // 没有...时
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$firstpage = 1;
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$endpage = $totalpage;
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}
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// 中间页码数据
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for ($i=$firstpage; $i<=$endpage; $i++) {
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$pagelist[$i-1]['page'] = $i;
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$pagelist[$i-1]['url'] = $this->url . $i;
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}
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return $begin + $pagelist + $last;
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}
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public function getLimitInfo() {
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$this->first_page_url = $this->url."/page/1"; //首页链接
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$this->end_page_url = $this->url."/end_page/1"; //尾页链接
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$this->jump_to_page_url = $this->url."/jump_to_page"; //跳转到某一页
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if($this->totalnum>0) $this->page = ceil($this->totalnum/$this->pagesize);
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if ($this->page > 1 || $this->endpage) $this->prev_page_url = $this->url.'/page/'.($this->page-1).'/maxid/'.$this->maxid; //上一页连接
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if (!$this->endpage) $this->next_page_url = $this->url.'/page/'.($this->page+1).'/minid/'.$this->minid; //下一页连接
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}
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}
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