php,ajax实现分页_PHP教程-php教程-PHP中文網

php,ajax实现分页_PHP教程

WBOY

發布： 2016-07-21 15:53:09

原創

1003 人瀏覽過

自己总结了些屁经验
1.用ajax post数据到后台页面后，接着要重新连接数据库，别以为用之前的session连接过就可以了
2.为了处理返回乱码的问题，我添加了header("Content-Type:text/html;charset=GB2312");就可以正常显示了，后来在firefox下检验，却提示我下载这个网页，上网搜了不少资料，得到一个模糊的认识就是网页代码有语法错误，firefox为了安全起见不会直接显示而是提示下载，我重新检查了刚才那条语句，发现自己多写了个“\”,把它去掉后问题就解决了，哈哈，所以遇到这样的问题，好好检查一下html tag吧，毕竟firefox可不像ie那样smart
3.最后说一句，做web site的开发者，要负责任，别以为在ie下测试通过就万事大吉，毕竟不是所有人都用ie，还得要在别的浏览器下多做测试，这样才显示出你的专业水准

ajax脚本：

复制代码代码如下:

<script>  <BR>function viewpage(p){  <BR>if(window.XMLHttpRequest){  <BR>var xmlReq = new XMLHttpRequest();  <BR>} else if(window.ActiveXObject) {  <BR>var xmlReq = new ActiveXObject('Microsoft.XMLHTTP');  <BR>}  <BR>var formData = "page="+p;  <BR>xmlReq.onreadystatechange = function(){  <BR>if(xmlReq.readyState == 4){  <BR>document.getElementById('content2').innerHTML = xmlReq.responseText;  <BR>}  <BR>}  <BR>xmlReq.open("post", "hotel_list.php", true);  <BR>xmlReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");  <BR>xmlReq.send(formData);  <BR>return false;  <BR>}  <BR></script> 

调用：

复制代码代码如下:

header("Content-Type:text/html;charset=GB2312");
$pagesize=10;
//echo $_POST['page'];
$result = mysql_query("Select count(DISTINCT hotelname) FROM ".TBL_HOTELS);
$myrow = mysql_fetch_array($result);
$numrows=$myrow[0];

$pages=intval($numrows/$pagesize);
if ($numrows%$pagesize)
$pages++;
if (isset($_POST['page'])){
$page=intval($_POST['page']);
}
else{
//设置为第一页
$page=1;
}
$first=1;
$prev=$page-1;
$next=$page+1;
$last=$pages;
//计算记录偏移量
$offset=$pagesize*($page - 1);
//读取指定记录数
$result=mysql_query("select `hotelname` , count( * ) from ".TBL_HOTELS." GROUP BY `hotelname` order by id desc limit $offset,$pagesize");
$num = mysql_num_rows($result);
while ($row = mysql_fetch_array($result,MYSQL_NUM)) {
$hotelname[] = $row[0];
$countpeople[] = $row[1];
}
for($a=0;$a{
//$result=mysql_query("select count(title) from " . TBL_Comments ." where `title`=\"".$title[$a]."\"");
//$row = mysql_fetch_row($result);
echo "\n";
echo "\n";
echo "\n";
echo "\n";
echo "\n";
echo " \n";
echo "\n";
echo "

\n"; //rating_bar($title[$a],5); echo "	$hotelname[$a]\n"; echo "
	\n"; echo " 推荐人数:($countpeople[$a]) \|\n"; echo "平均分： (".$count."票) \| 评论数:()\n"; echo "

\n";
}
echo "echo "border=0>";
echo "

";
echo "