本文实例讲述了PHP分页显示的方法。分享给大家供大家参考,具体如下:
<?phpheader("content-type:text/html;charset=utf-8");$currentpage = 1;if(isset($_GET['page'])) $currentpage = $_GET['page'];//连接数据库$link = mysql_connect("localhost","root","") or die('连接失败');mysql_select_db('myschool');mysql_query('set names utf8');$sql ="SELECT count(*) as 'count' from student";//查询记录的sql语句$result = mysql_query($sql);$arr = mysql_fetch_array($result);$count = $arr['count'];$pagesize = 3;$pages = ceil($count/$pagesize);//共多少页$prepage = $currentpage -1;if($prepage<=0) $prepage=1;$nextpage = $currentpage+1;if($nextpage >= $pages){ $nextpage = $pages;}$start =($currentpage-1) * $pagesize;//起始位置$sql = "SELECT * from student limit $start,$pagesize";echo $sql;// $sql = "select * from student";$result = mysql_query($sql);?><!-- html部分 --><!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Document</title></head><body><table border="1"> <tr> <td>学号</td> <td>姓名</td> <td>性别</td> <td>年龄</td> </tr><?php while($arr=mysql_fetch_array($result)){ ?> <td><?php echo $arr['number']; ?></td> <td><?php echo $arr['name']; ?></td> <td><?php echo $arr['sex']; ?></td> <td><?php echo $arr['age']; ?></td> </tr><?php } ?> </table> <a href="<?php echo $_SERVER['PHP_SELF'].'?page='.$prepage; ?>" rel="external nofollow" >上一页</a> <a href="<?php echo $_SERVER['PHP_SELF'].'?page='.$nextpage; ?>" rel="external nofollow" >下一页</a></body></html>
注:当一个文件中有php和html两种时,php文件必须有结束标记
附:php通用分页类与用法:
Page.class.php文件:
<?php/** * 分页类 * * 调用方式: * $p=new Page(总条数,显示页数,当前页码,每页显示条数,[链接]); * print_r($p->getPages()); //生成一个页码数组(键为页码,值为链接) * echo $p->showPages(1); //生成一个页码样式(可添加自定义样式) * *//*总条数,需要显示的页数,当前页,每页显示的条数,连接生成一个一维数组,键为页码 值为连接返回一个生成好样式的页码(并且可以根据自己需要添加样式)默认样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页]*/class Page{ protected $count; //总条数 protected $showPages; //需要显示的页数 protected $countPages; //总页数 protected $currPage; //当前页 protected $subPages; //每页显示条数 protected $href; //连接 protected $page_arr=array(); //保存生成的页码 键页码 值为连接 /** * __construct 构造函数(获取分页所需参数) * @param int $count 总条数 * @param int $showPages 显示页数 * @param int $currPage 当前页数 * @param int $subPages 每页显示数量 * @param string $href 连接(不设置则获取当前URL) */ public function __construct($count,$showPages,$currPage,$subPages,$href=''){ $this->count=$count; $this->showPages=$showPages; $this->currPage=$currPage; $this->subPages=$subPages; //如果链接没有设置则获取当前连接 if(empty($href)){ $this->href=htmlentities($_SERVER['PHP_SELF']); }else{ $this->href=$href; } $this->construct_Pages(); } /** * getPages 返回页码数组 * @return array 一维数组 键为页码 值为链接 */ public function getPages(){ return $this->page_arr; } /** * showPages 返回生成好的页码 * @param int $style 样式 * @return string 生成好的页码 */ public function showPages($style=1){ $func='pageStyle'.$style; return $this->$func(); } /** * pageStyle1 分页样式(可参照这个添加自定义样式 例如pageStyle2()) * 样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页] * @return string */ protected function pageStyle1(){ /* 构造普通模式的分页 共4523条记录,每页显示10条,当前第1/453页 [首页] [上页] [1] [2] [3] .. [下页] [尾页] */ $pageStr='共'.$this->count.'条记录,每页显示'.$this->subPages.'条'; $pageStr.='当前第'.$this->currPage.'/'.$this->countPages.'页 '; $_GET['page'] = 1; $pageStr.='<span>[<a href="'.$this->href.'?'.http_build_query($_GET).'" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首页</a>] </span>'; //如果当前页不是第一页就显示上页 if($this->currPage>1){ $_GET['page'] = $this->currPage-1; $pageStr.='<span>[<a href="'.$this->href.'?'.http_build_query($_GET).'" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >上页</a>] </span>'; } foreach ($this->page_arr as $k => $v) { $_GET['page'] = $k; $pageStr.='<span>[<a href="'.$v.'" rel="external nofollow" >'.$k.'</a>] </span>'; } //如果当前页小于总页数就显示下一页 if($this->currPage<$this->countPages){ $_GET['page'] = $this->currPage+1; $pageStr.='<span>[<a href="'.$this->href.'?'.http_build_query($_GET).'" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >下页</a>] </span>'; } $_GET['page'] = $this->countPages; $pageStr.='<span>[<a href="'.$this->href.'?'.http_build_query($_GET).'" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >尾页</a>] </span>'; return $pageStr; } /** * construct_Pages 生成页码数组 * 键为页码,值为链接 * $this->page_arr=Array( * [1] => index.php?page=1 * [2] => index.php?page=2 * [3] => index.php?page=3 * ......) */ protected function construct_Pages(){ //计算总页数 $this->countPages=ceil($this->count/$this->subPages); //根据当前页计算前后页数 $leftPage_num=floor($this->showPages/2); $rightPage_num=$this->showPages-$leftPage_num; //左边显示数为当前页减左边该显示的数 例如总显示7页 当前页是5 左边最小为5-3 右边为5+3 $left=$this->currPage-$leftPage_num; $left=max($left,1); //左边最小不能小于1 $right=$left+$this->showPages-1; //左边加显示页数减1就是右边显示数 $right=min($right,$this->countPages); //右边最大不能大于总页数 $left=max($right-$this->showPages+1,1); //确定右边再计算左边,必须二次计算 for ($i=$left; $i <= $right; $i++) { $_GET['page'] = $i; $this->page_arr[$i]=$this->href.'?'.http_build_query($_GET); } }}?>
用法示例demo.php:
<?php/** * demo */header("content-type:text/html;charset=utf8");include('Page.class.php'); //引入类//$p=new Page(总条数,显示页数,当前页码,每页显示条数,[链接]);//连接不设置则为当前链接$page=isset($_GET['page']) ? $_GET['page'] : 1;$p=new Page(100,4,$page,8);//生成一个页码数组(键为页码,值为链接)echo "<pre>";print_r($p->getPages());//样式 共45条记录,每页显示10条,当前第1/4页 [首页] [上页] [1] [2] [3] .. [下页] [尾页]echo $p->showPages(1);
希望本文所述对大家PHP程序设计有所帮助。
新闻热点
疑难解答
图片精选