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又一个php 分页类实现代码_php技巧

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Release: 2016-05-17 09:29:19
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复制代码 代码如下:

function genpage(&$sql,$page_size=10)
{
global $pages,$sums,$eachpage,$page; //总页数,总记录,每页数,当前页
$page = $_GET["page"];
if($page ==0)$page =1;
$eachpage = $page_size;
$pagesql = strstr($sql," from ");
$pagesql = "select count(*) as ids ".$pagesql;
$conn = mysql_query($pagesql) or die(mysql_error());
if($rs = mysql_fetch_array($conn))$sums = $rs[0];
$pages=ceil($sums/$eachpage);
if($pages==0)$pages=1;
$startpos = ($page-1)*$eachpage;
$sql .=" limit $startpos,$eachpage ";
}

//显示分页
function showpage()
{
global $pages,$sums,$eachpage,$page; //总页数,总记录,每页数,当前页,其它参数
$link=$_SERVER['PHP_SELF'];
echo "记录".$sums.":".$eachpage." ";
echo "页数".$page."/".$pages." ";
$p_head=$page-5;
if($p_head$p_end=$page+5;
if($p_end>$pages)$p_end=$pages; //页码循环结束数 后5个
echo "[首页] ";
for($i=$p_head;$i{
if($i!=$page)
echo "[$i] ";
else
echo "[$i] ";
}
echo " [末页]";
}
?>
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