本文为大家分享了php微信公众号开发之翻页查询的具体代码，供大家参考，具体内容如下
注意：公众号列表最多只能列出8列，超出会报错
- 分页原理
- limit 开始位置 , 条数
- (当前页数 - 1) x 每页条数 ， 每页条数
- limit ($Page - 1) * $PageSize , $PageSize
- 0 为开始位置
- mysql_num_rows 条数
- require() 与 require_once() 开始加载，错误停止
- include() 与 include_once() 使用加载，错误跳过
- ceil 进一 向上取整
原理：
- 总共10条，每页9条
- n条
- sum 总共几页 ceil ( n / 9 )
- 开始条数 ： （当前页数 - 1 ） x 每页条数
- （key - 1）* 9
注释：+1 是为了说明有多少页
>10 10
核心代码如下：
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$type = $postObj->MsgType;
$customevent = $postObj->Event;
$latitude = $postObj->Location_X;
$longitude = $postObj->Location_Y;
$keyword = trim($postObj->Content);
$time = time();
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<Content>%s</Content>
<FuncFlag>0</FuncFlag>
</xml>";
switch ($type)
{
case "event";
if ($customevent=="subscribe")
{$contentStr = "感谢你的关注\n栏目正在搭建，敬请期待\n回复1看视频教程";}
break;
case "image";
$contentStr = "你的图片很棒！";
break;
case "location";
$contentStr = "你的纬度是{$latitude},经度是{$longitude},我已经锁定！";
break;
case "link" ;
$contentStr = "你的链接有病毒吧！";
break;
case "text";
include("coon.php");
$num = "SELECT * FROM `kecheng` ";
$que=mysql_query($num);
$no=mysql_num_rows($que);//获得条数
$sumpage=ceil($no/7);
$page=(intval($keyword)-1)*7;
$total=$no-$page+1;
if($total>8)
{$total=8;}
$sql = "SELECT * FROM `kecheng` ORDER BY `id` DESC LIMIT {$page},7";
$query=mysql_query($sql);
$newsTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>$total</ArticleCount>
<Articles>
<item>
<Title><![CDATA[总共{$sumpage}页，输入页数翻页]]></Title>
<Description><![CDATA[]]></Description>
<PicUrl>http://autoguitar.duapp.com/1.jpg</PicUrl>
<Url><![CDATA[]]></Url>
</item>";
while($rs=mysql_fetch_array($query)){
$newsTpl.="<item>
<Title>$rs[content]</Title>
<Description><![CDATA[]]></Description>
<PicUrl>http://dq095.applinzi.com/2.jpg</PicUrl>
<Url><![CDATA[]]></Url>
</item>";
}
$newsTpl.="</Articles>
<FuncFlag>0</FuncFlag>
</xml>";
$myresultStr = sprintf($newsTpl, $fromUsername, $toUsername, $time);
echo $myresultStr;
break;
default;
$contentStr ="此项功能尚未开发";
}
$msgType="text";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
coon.php连接数据库代码如下：
<?php
//用 户 名 : $user
//密 码 : $pwd
//主库域名 : $host
//从库域名 : SAE_MYSQL_HOST_S
//端 口 : $port
//数据库名 : $dbname
$dbname = "app_dq095";
$host = "w.rdc.sae.sina.com.cn";
$port = "3306";
$user = "4k514n103z";
$pwd = "2402314li2j1i5im1xy2xizj5y332w2x41k2z203";
/*接着调用mysql_connect()连接服务器*/
// 连主库
$db = mysql_connect($host,$user,$pwd);
if(!$db){
die("Connect Server Failed: " . mysql_error($db));
}
/*连接成功后立即调用mysql_select_db()选中需要连接的数据库*/
if (!mysql_select_db($dbname)) {
die("Select Database Failed: " . mysql_error($db));
}
mysql_query("set names utf-8",$db);
/*至此连接已完全建立，就可对当前数据库进行相应的操作了*/
/*！！！注意，无法再通过本次连接调用mysql_select_db来切换到其它数据库了！！！*/
/* 需要再连接其它数据库，请再使用mysql_connect+mysql_select_db启动另一个连接*/
/**
* 接下来就可以使用其它标准php mysql函数操作进行数据库操作
*/
index.php整体代码如下：
<?php
/**
* wechat php test
*/
//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
//extract post data
if (!empty($postStr)){
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$type = $postObj->MsgType;
$customevent = $postObj->Event;
$latitude = $postObj->Location_X;
$longitude = $postObj->Location_Y;
$keyword = trim($postObj->Content);
$time = time();
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<Content>%s</Content>
<FuncFlag>0</FuncFlag>
</xml>";
switch ($type)
{
case "event";
if ($customevent=="subscribe")
{$contentStr = "感谢你的关注\n栏目正在搭建，敬请期待\n回复1看视频教程";}
break;
case "image";
$contentStr = "你的图片很棒！";
break;
case "location";
$contentStr = "你的纬度是{$latitude},经度是{$longitude},我已经锁定！";
break;
case "link" ;
$contentStr = "你的链接有病毒吧！";
break;
case "text";
include("coon.php");
$num = "SELECT * FROM `kecheng` ";
$que=mysql_query($num);
$no=mysql_num_rows($que);//获得条数
$sumpage=ceil($no/7);
$page=(intval($keyword)-1)*7;
$total=$no-$page+1;
if($total>8)
{$total=8;}
$sql = "SELECT * FROM `kecheng` ORDER BY `id` DESC LIMIT {$page},7";
$query=mysql_query($sql);
$newsTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>$total</ArticleCount>
<Articles>
<item>
<Title><![CDATA[总共{$sumpage}页，输入页数翻页]]></Title>
<Description><![CDATA[]]></Description>
<PicUrl>http://autoguitar.duapp.com/1.jpg</PicUrl>
<Url><![CDATA[]]></Url>
</item>";
while($rs=mysql_fetch_array($query)){
$newsTpl.="<item>
<Title>$rs[content]</Title>
<Description><![CDATA[]]></Description>
<PicUrl>http://dq095.applinzi.com/2.jpg</PicUrl>
<Url><![CDATA[]]></Url>
</item>";
}
$newsTpl.="</Articles>
<FuncFlag>0</FuncFlag>
</xml>";
$myresultStr = sprintf($newsTpl, $fromUsername, $toUsername, $time);
echo $myresultStr;
break;
default;
$contentStr ="此项功能尚未开发";
}
$msgType="text";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}
}
private function checkSignature()
{
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}
?>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持阿兔在线工具。
