**最近整理了一下项目中用到的一些分页组件,将其封装起来（可以说1.0版本）,希望大侠们多提提意见,来，先看一下运行效果**
样式可能不是太美观,不过我已将样式与功能分离,这样大家就可以根据自己的需要的风格定义样式了,先说下我这个组件的**优点:**
**
**1.将分页与数据绑定合在一个文件输出**
2**.灵活性高：不局限于某一个表,我们可以通过传表名来获取不同的结果，表内字段名完全自动识别**
**3.可以按照条件查询数据**
**4.每页显示的条数也只是一个参数**
**下面看一下代码**
~~~
<?php
include("../Common/connectDB.php");
//分页函数
//$page要提交的页面
//$adj要查询的页面两边各放几个按钮
//$limit每页要显示的条数
//$table查询的表名
//$sql 要执行的查询语句
//$arrayTitle 数据绑定每列的标题 必须和下面的每列的列名对应
//$arrayColName 数据表中要显示的列名，当为xg1125时表示修改，sc1125删除
//$strwhere查询的where条件
//$sort用于保存查询条件的值
//$addPage 添加,修改时要跳转的页面
function echoPage($fname,$adj,$limi,$table,$sql,$arrayTitle,$arrayColName,$strwhere,$sort,$addPage) //传一个要显示的字段数组
{
$tbl_name=$table; //要查询的表名
// 要查询的页面两边各放几个按钮
$adjacents = $adj;
$query = "SELECT COUNT(*) as num FROM $tbl_name".$strwhere;
$total_pages = mysql_fetch_array(mysql_query($query));
@$total_pages = $total_pages[num];//得到总条数
/* Setup vars for query. */
$targetpage = $fname; //将要进行分页的页面用来向该文件传递参数
$limit = $limi; //每页显示多少条数据
if(isset($_GET['page']))
$page = $_GET['page']; //要显示的那一页
else
$page=1;
if($page)
$start = ($page - 1) * $limit; //first item to display on this page，本页的第一条数据位置
else
$start = 0; //if no page var is given, set start to 0 如果没有传递参数值，则默认为0
/* Get data. */
$sql = $sql .$strwhere. "order by addDate desc LIMIT $start, $limit " ;
//echo $sql;
$result = mysql_query($sql);
/* Setup page vars for display. */
if ($page == 0) $page = 1; //if no page var is given, default to 1. 如果没有提供页数则为当前页
$prev = $page - 1; //previous page is page - 1 前一页的页号
$next = $page + 1; //next page is page + 1 下一页的页号
$lastpage = ceil($total_pages/$limit); //lastpage is = total pages / items per page, rounded up. 最后一页
$lpm1 = $lastpage - 1; //last page minus 1 倒数第二页
/*
Now we apply our rules and draw the pagination object.
We're actually saving the code to a variable in case we want to draw it more than once.
*/
$pagination = "";//保存前台显示按钮
//分页逻辑
if($lastpage > 1)//如果页数大于1进行分页
{
$pagination .= "<div class=\"pagination\">";
//previous button 上一页
if ($page > 1)
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$prev\">« previous</a>";
else
$pagination.= "<span class=\"disabled\">« previous</span>";
//pages
if ($lastpage < 7 + ($adjacents * 2)) //页面小于13页，全部显示
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$counter\">$counter</a>";
}
}
elseif($lastpage > 5 + ($adjacents * 2)) //页面大于11页隐藏部分分页
{
//close to beginning; only hide later pages
if($page < 1 + ($adjacents * 2)) //如果分页值为7一下的显示方式
{
for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)//显示1搭配9
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$counter\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$lastpage\">$lastpage</a>";
}
//in middle; hide some front and some back
elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))//如果分页值离左右边界的距离都大于6
{
$pagination.= "<a href=\"$targetpage?sort=$sort&page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=2\">2</a>";
$pagination.= "...";
for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)//则显示分页值为中心左边6个右边6个
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$counter\">$counter</a>";
}
$pagination.= "...";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$lpm1\">$lpm1</a>";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$lastpage\">$lastpage</a>";
}
//close to end; only hide early pages
else
{
$pagination.= "<a href=\"$targetpage?sort=$sort&page=1\">1</a>";
$pagination.= "<a href=\"$targetpage?sort=$sort&page=2\">2</a>";
$pagination.= "...";
for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page)
$pagination.= "<span class=\"current\">$counter</span>";
else
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$counter\">$counter</a>";
}
}
}
//next button
if ($page < $counter - 1)
$pagination.= "<a href=\"$targetpage?sort=$sort&page=$next\">next »</a>";
else
$pagination.= "<span class=\"disabled\">next »</span>";
$pagination.= "</div>\n";
}
//实现绑定数据功能
echo "<table id='mytable' cellspacing='0'>";
echo '<tr>';
//echo"<th class='hide'>ID</th>";
//echo'<th>标题</th>';
//echo'<th>类型</th>';
//echo'<th>发布时间</th>';
//echo'<th>点击次数</th>';
//echo'<th>修改</th>';
//echo'<th>删除</th>';
foreach($arrayTitle as $title)
{
echo'<th>'.$title.'</th>';
}
echo '</tr>';
//在下面的循环里可以稍微加点逻辑
while($row=@mysql_fetch_array($result))
{
echo '<tr>';
foreach($arrayColName as $col)
{
if($col=='title')
echo "<td><a href='#'>".$row['title']."</a></td>";
else if($col=='xg1125')
echo "<td><a href='$addPage".$row['id']."'>修改</a></td>";
else if($col=='sc1125')
echo "<td><a href='$targetpage?sort=$sort&delid=".$row['id']."' onclick=\"if (confirm('删除之后将无法恢复，确定要删除吗？')) return true; else return false;\" >删除</a></td>";
else
echo "<td>".$row[$col]."</td>"; //正常情况下的输出
}
//echo "<td>".$row['ID']."</td>";
//echo "<td><a href='#'>".$row['title']."</a></td>";
//echo "<td>.".$row['sort']."</td>";
//echo "<td>.".$row['Date']."</td>";
//echo "<td>".$row['click']."</td>";
//echo "<td><a href='#'>修改</a></td>";
//echo "<td><a href='#'>删除</a></td>";
echo '</tr>';
}
echo "</table>";
echo $pagination;
}
?>
~~~
**下面看一下调用方法 调用很简单只是根据情况传递参数**
**
~~~
$page='ManageNews.php';//要提交的页面
$adj=3;//要查询的页面两边各放几个按钮
$limit=10;//每页要显示的条数
$table='news';//查询的表名
$strwhere=" where sort="."'".$sort."'"; //查询的where 条件
$addPage='AddNews.php?newid=';//添加要跳转的页面
$sql="SELECT id, title, addDate, (CASE sort WHEN '0' THEN '科技新闻' WHEN '1' THEN '最新活动' WHEN '2' THEN '技术服务' WHEN '3' THEN '诚聘英才' END ) AS sort, click FROM `news`" ; //要执行的查询语句
$arrayTitle=array('编号','标题','类型','发布时间','点击次数','修改','删除');//数据绑定每列的标题 必须和下面的每列的列名对应
$arrayColName=array('id','title','sort','addDate','click','xg1125','sc1125');//数据表中要显示的列名，当为xg1125时表示修改，sc1125删除
echoPage($page,$adj,$limit,$table,$sql,$arrayTitle,$arrayColName,$strwhere,$sort,$addPage);
~~~
**以上就是我整理的分页逻辑,自己发现的问题：健壮性有待提高,我会尽快的完善一下,希望大家能够多提提意见,小弟不胜感激，我定会虚心接受。**
