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PHP实现分页:文本分页和数字分页

Jun 06, 2016 pm 07:47 PM
http php Pagination accomplish number text source

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>
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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;
}
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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>
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<span><?php <span>// 分页类型 1是数字分页  2是文本分页</span>
      paging(2);
?>    
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   调用的位置根据具体情况选择,文本分页如下:

PHP实现分页:文本分页和数字分页PHP实现分页:文本分页和数字分页

<span><?php <span>// 分页类型 1是数字分页  2是文本分页</span>
        paging(1);
 ?>    
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数字分页如下:

PHP实现分页:文本分页和数字分页PHP实现分页:文本分页和数字分页

样式自行调整。

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