PHP实现分页:文本分页和数字分页
来源:http://www.ido321.com/1086.html 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 /** * $pageType 分页类型 1是数字分页 2是文本分页 * 可以将$pageTotal,$page,$total等数据作为参数传递,
来源:http://www.ido321.com/1086.html
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。
<span>// 分页分装</span><span> <span>/**</span> <span>* $pageType 分页类型 1是数字分页 2是文本分页</span> <span>* 可以将$pageTotal,$page,$total等数据作为参数传递,或者在paging作为全局变量(推荐)</span> <span>*/</span> <span>function</span> paging($pageType) { <span>global</span> $pageTotal,$page,$total; <span>if</span>($pageType == 1) { <span>echo</span> <span>'<div id="pagenum">'; <span>echo</span><span>'<ul>'</ul></span>; <span>for</span>($i=0; $i if($page == ($i+1)) { <span>echo</span> <span>'<li><a href="blogfriends.php?page='</span>.(%24i+1).<span>'" class="selected">'</a></li></span>.($i+1).<span>''</span>; } <span>else</span> { <span>echo</span> <span>'<li><a href="blogfriends.php?page='</span>.(%24i+1).<span>'">'</a></li></span>.($i+1).<span>''</span>; } } <span>echo</span><span>''</span>; <span>echo</span><span>'</span> </div>'</span>; } <span>else</span> <span>if</span>($pageType == 2) { <span>echo</span> <span>'<div id="pagetext">'; <span>echo</span> <span>'<ul>'</ul></span>; <span>echo</span> <span>'<li>'</li></span>.$page.<span>'/'</span>.$pageTotal.<span>'页 | '</span>; <span>echo</span> <span>'<li>共有<strong>'</strong> </li></span>.$total .<span>'个会员 | '</span>; <span>// 第一页</span> <span>if</span>($page == 1) { <span>echo</span> <span>'<li>首页 | </li>'</span>; <span>echo</span> ; } <span>else</span> { <span>// $_SERVER["SCRIPT_NAME"]获取当前的脚本名字,方便移植</span> <span>// 也可以自定义常量,常量值和脚本文件名一致</span> <span>echo</span> <span>'<li> <a href="'</span>.%24_SERVER%5B<span>" script_name>].<span>'">首页 </span></a>| </li>'</span>; <span>echo</span> <span>'<li><a href="'</span>.%24_SERVER%5B<span>" script_name>].<span>'?page='</span>.($page - 1).; } <span>// 最后一页</span> <span>if</span>($page == $pageTotal) { <span>echo</span> ; <span>echo</span> <span>'<li>尾页 | </li>'</span>; } <span>else</span> { <span>echo</span> <span>'<li><a href="'</span>.%24_SERVER%5B<span>" script_name>].<span>'?page='</span>.($page + 1).; <span>echo</span> <span>'<li> <a href="'</span>.%24_SERVER%5B<span>" script_name>].<span>'?page='</span>.($pageTotal).<span>'">尾页 </span></a>| </li>'</span>; } <span>echo</span> <span>''</span>; <span>echo</span> <span>'</span></a></li></span></a></li></span> </div>'</span>; } }</span>
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
<span>// 分页参数分装</span><span> <span>/**</span> <span>* $sql 可以 获取数据总数的一个sql语句</span> <span>* $size 每一页显示条数</span> <span>*/</span> <span>function</span> pageParam($sql,$size) { <span>// 将所有涉及的参数设置全局变量</span> <span>// $pagestart 某一页从哪里开始</span> <span>// $total 总记录数 $page 某一页 $pageTotal 总页数</span> <span>global</span> $pagestart,$pagesize,$total,$page,$pageTotal; $pagesize = $size; <span>// 获取数据总数</span> $total = mysql_num_rows(queryDB($sql)); <span>// 错误处理,先判断是否存在</span> <span>if</span>(<span>isset</span>($_GET[<span>'page'</span>])) { <span>// 具体某一页</span> $page = $_GET[<span>'page'</span>]; <span>// 判断是否为空(0是空)/小于0/是否是数字</span> <span>if</span>(<span>empty</span>($page) || $page else</span> { $page = intval($page); <span>//取整,防止小数出现</span> } } <span>else</span> { <span>// 初始化显示第1页</span> $page = 1; } <span>// 数据库清零</span> <span>if</span>($total == 0) { <span>// 设置为1</span> $pageTotal = 1; } <span>else</span> { <span>// 分页的总页数(进一取整处理)</span> $pageTotal = ceil($total / $pagesize); } <span>// 页数大于总页码$total</span> <span>if</span>($page > $pageTotal) { $page = $pageTotal; } <span>// 当页从某一条记录开始</span> $pagestart = ($page - 1) * $pagesize; }
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
<span>/**</span><span> <span>* 第一个 可以 获取数据总数的一个sql语句</span> <span>* 第二个 每一页显示条数</span> <span>*/</span> pageParam(<span>"select userid from user"</span>,2);</span>
<span><?php <span>// 分页类型 1是数字分页 2是文本分页</span> paging(2); ?>
调用的位置根据具体情况选择,文本分页如下:
<span><?php <span>// 分页类型 1是数字分页 2是文本分页</span> paging(1); ?>
数字分页如下:


样式自行调整。
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