最近,在项目中要用到分页。分页功能是经常使用的一个功能,所以,对其以函数形式进行了封装。
// 分页分装<br>/**<br>* $pageType 分页类型 1是数字分页 2是文本分页<br>* 可以将$pageTotal,$page,$total等数据作为参数传递,或者在paging作为全局变量(推荐)<br>*/<br>function paging($pageType)<br>{<br> global $pageTotal,$page,$total;<br> if($pageType == 1)<br> {<br> echo '<div id="pagenum">';<br> echo'<ul>';<br> for($i=0; $i { <br> if($page == ($i+1))<br> {<br> echo '<li><a href="blogfriends.php?page='.(%24i+1).'">'.($i+1).'</a></li>';<br> }<br> else<br> {<br> echo '<li><a href="blogfriends.php?page='.(%24i+1).'">'.($i+1).'</a></li>';<br> }<br> }<br> echo'</ul>';<br> echo'</div>';<br><br> }<br> else if($pageType == 2)<br> {<br> echo '<div id="pagetext">';<br> echo '<ul>';<br> echo '<li>'.$page.'/'.$pageTotal.'页 | </li>';<br> echo '<li>共有<strong>'.$total .'</strong>个会员 | </li>';<br> // 第一页<br> if($page == 1)<br> {<br> echo '<li>首页 | </li>';<br> echo '<li> | </li>';<br> echo '<li>尾页 | </li>';<br> }<br> else<br> {<br> echo '<li> <a href="'.%24_SERVER%5B" script_name>下一页 </a>| </li>';<br> echo '<li> <a href="'.%24_SERVER%5B" script_name>尾页 </a>| </li>';<br> } <br> echo '</ul>';<br> echo '</div>';<br> }<br>}
参数解释:
$pageTotal是总页数,$page是当前页,$total是从数据库中获取的数据总数;
为了简化,将参数全部封装
// 分页参数分装<br>/**<br>* $sql 可以 获取数据总数的一个sql语句<br>* $size 每一页显示条数<br>*/<br>function pageParam($sql,$size)<br>{<br> // 将所有涉及的参数设置全局变量<br> // $pagestart 某一页从哪里开始<br> // $total 总记录数 $page 某一页 $pageTotal 总页数<br> global $pagestart,$pagesize,$total,$page,$pageTotal;<br> $pagesize = $size;<br> // 获取数据总数<br> $total = mysql_num_rows(queryDB($sql));<br><br> // 错误处理,先判断是否存在<br> if(isset($_GET['page']))<br> {<br> // 具体某一页<br> $page = $_GET['page'];<br> // 判断是否为空(0是空)/小于0/是否是数字<br> if(empty($page) || $page {<br> $page = 1;<br> }<br> else<br> {<br> $page = intval($page); //取整,防止小数出现<br> }<br> <br> }<br> else<br> {<br> // 初始化显示第1页<br> $page = 1;<br> }<br><br> // 数据库清零<br> if($total == 0)<br> {<br> // 设置为1<br> $pageTotal = 1;<br> }<br> else<br> {<br> // 分页的总页数(进一取整处理)<br> $pageTotal = ceil($total / $pagesize);<br> }<br><br> // 页数大于总页码$total<br> if($page > $pageTotal)<br> {<br> $page = $pageTotal;<br> }<br> // 当页从某一条记录开始<br> $pagestart = ($page - 1) * $pagesize;<br>}
参数解释:
$pagestart是当页从某一条记录开始,$pagesize是每页显示的记录数
在使用中,先调用pageParam,再调用paging
/**<br>* 第一个 可以 获取数据总数的一个sql语句<br>* 第二个 每一页显示条数<br>*/<br>pageParam("select userid from user",2);
// 分页类型 1是数字分页 2是文本分页<br> paging(2);<br>?>
调用的位置根据具体情况选择,文本分页如下:
// 分页类型 1是数字分页 2是文本分页<br> paging(1);<br> ?>
数字分页如下:
样式自行调整。

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