PHP通用的分页组件（分页加绑定数据）
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>";
$pagination.= "</div>
";
}
//实现绑定数据功能
echo "<table id="mytable" cellspacing="0">";
echo "<tr>";
//echo"<th class="hide">ID</th>";
//echo"<th>标题</th>";
//echo"<th>类型</th>";
//echo"<th>发布时间</th>";
//echo"<th>点击次数</th>";
//echo"<th>修改</th>";
//echo"<th>删除</th>";
foreach($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。