php微信公众号开发之翻页查询

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。

以上是 php微信公众号开发之翻页查询 的全部内容, 来源链接: utcz.com/p/222305.html

回到顶部