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Home Backend Development PHP Tutorial 做了个跳转成功了但跳转的页面分页功能失效了 求大神指点

做了个跳转成功了但跳转的页面分页功能失效了 求大神指点

Jun 23, 2016 pm 01:27 PM

require_once 'conn.php';
$sql="select * from help_relation";
$result=mysql_query($sql);
$num=mysql_num_rows($result);
$pagesize=2;//设定每页的记录数
$pages=ceil($num/$pagesize);//取得总页数
if($pages $page=$_GET[page];//取得传递过来的页数
if($page>$pages){$page=$pages;}//如果传递过来的页数比总页数还大,就让它等于总页数
if($page $kaishi=($page-1)*$pagesize;//为下一步做准备,limit的初始记录
if(isset($_GET['help_keyword_id'])!=''){
    $help_keyword_id=$_GET['help_keyword_id'];
$sql="select * from help_relation where help_keyword_id='$help_keyword_id' order by help_keyword_id desc limit $kaishi,$pagesize";//取得记录从计算出的初始值开始,一共$pagesize条
$result=mysql_query($sql);//取得结果
while($row=mysql_fetch_array($result))
{
echo "

\n"; 
//echo "".$row['id']."\n";
echo "".$row['help_topic_id']."";
echo"\n"; 
}
}
这是代码


回复讨论(解决方案)

没有传递 page 和 help_keyword_id 的代码
$help_keyword_id 只在有传入的 help_keyword_id 时存在,那没传入时不报错吗?

那应该怎么改呢 要重新写一条sql语句吗 还是在原有的基础上改

跪求大神啊 急用 实在是改不来 网上也找不到有用的

你这在网上档的么?你只做了分页,没做显示页码~当然没法做?
你要做一个显示页码的方法吧

点第一页的时候,就是你当前网址?page=1
你现在$page不存在肯定有问题啊?你起码要判断page为空的时候也要显示第一页

另一个$help_keyword_id 也是一样啊,你通过$_GET来获取,你的链接里必须存在啊

例如:www.baidu.com?page=1&help_keyword_id=15
这样才能获取啊

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