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。