php微信公眾號開發(fā)之翻頁查詢

更新時間：2018年10月20日 10:50:49 作者：dq_095

這篇文章主要為大家詳細(xì)介紹了php微信公眾號開發(fā)之翻頁查詢功能，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文為大家分享了php微信公眾號開發(fā)之翻頁查詢的具體代碼，供大家參考，具體內(nèi)容如下

注意：公眾號列表最多只能列出8列，超出會報錯

分頁原理
limit 開始位置 , 條數(shù)
(當(dāng)前頁數(shù) - 1) x 每頁條數(shù) ，每頁條數(shù)
limit ($Page - 1) * $PageSize , $PageSize
0 為開始位置
mysql_num_rows 條數(shù)
require() 與 require_once() 開始加載，錯誤停止
include() 與 include_once() 使用加載，錯誤跳過
ceil 進(jìn)一向上取整

原理：

總共10條，每頁9條
n條
sum 總共幾頁 ceil ( n / 9 )
開始條數(shù) ：（當(dāng)前頁數(shù) - 1 ） x 每頁條數(shù)
（key - 1）* 9

注釋：+1 是為了說明有多少頁

>10 10

核心代碼如下：

$postObj = simplexml_load_string($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 = "感謝你的關(guān)注\n欄目正在搭建，敬請期待\n回復(fù)1看視頻教程";}
        break;
        case "image";
          $contentStr = "你的圖片很棒！";
          break;
        case "location";
          $contentStr = "你的緯度是{$latitude},經(jīng)度是{$longitude},我已經(jīng)鎖定！";
          break;
        case "link" ;
          $contentStr = "你的鏈接有病毒吧！";
          break;
        case "text";
           include("coon.php");
           $num = "SELECT * FROM `kecheng` ";
           $que=mysql_query($num);
           $no=mysql_num_rows($que);//獲得條數(shù)
           $sumpage=ceil($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[總共{$sumpage}頁，輸入頁數(shù)翻頁]]></Title>
            <Description><![CDATA[]]></Description>
            <PicUrl>http://autoguitar.duapp.com/1.jpg</PicUrl>
            <Url><![CDATA[]]></Url>
            </item>";
              while($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 ="此項功能尚未開發(fā)";  
        }
        $msgType="text";
        $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
        echo $resultStr;

coon.php連接數(shù)據(jù)庫代碼如下：

<?php

    //用 戶 名 : $user
    //密　　碼 : $pwd
    //主庫域名 : $host
    //從庫域名 : SAE_MYSQL_HOST_S
    //端　　口 : $port
    //數(shù)據(jù)庫名 : $dbname

    $dbname = "app_dq095";
    $host = "w.rdc.sae.sina.com.cn";
    $port = "3306";
    $user = "4k514n103z";
    $pwd = "2402314li2j1i5im1xy2xizj5y332w2x41k2z203";

    /*接著調(diào)用mysql_connect()連接服務(wù)器*/
    // 連主庫
    $db = mysql_connect($host,$user,$pwd);

    if(!$db){
      die("Connect Server Failed: " . mysql_error($db));
    }

    /*連接成功后立即調(diào)用mysql_select_db()選中需要連接的數(shù)據(jù)庫*/
    if (!mysql_select_db($dbname)) {
      die("Select Database Failed: " . mysql_error($db));
    }
    mysql_query("set names utf-8",$db); 

    /*至此連接已完全建立，就可對當(dāng)前數(shù)據(jù)庫進(jìn)行相應(yīng)的操作了*/
    /*?。。∽⒁?，無法再通過本次連接調(diào)用mysql_select_db來切換到其它數(shù)據(jù)庫了！??！*/
    /* 需要再連接其它數(shù)據(jù)庫，請再使用mysql_connect+mysql_select_db啟動另一個連接*/

    /**
       * 接下來就可以使用其它標(biāo)準(zhǔn)php mysql函數(shù)操作進(jìn)行數(shù)據(jù)庫操作
    */

index.php整體代碼如下：

<?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 = "感謝你的關(guān)注\n欄目正在搭建，敬請期待\n回復(fù)1看視頻教程";}
        break;
        case "image";
          $contentStr = "你的圖片很棒！";
          break;
        case "location";
          $contentStr = "你的緯度是{$latitude},經(jīng)度是{$longitude},我已經(jīng)鎖定！";
          break;
        case "link" ;
          $contentStr = "你的鏈接有病毒吧！";
          break;
        case "text";
           include("coon.php");
           $num = "SELECT * FROM `kecheng` ";
           $que=mysql_query($num);
           $no=mysql_num_rows($que);//獲得條數(shù)
           $sumpage=ceil($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[總共{$sumpage}頁，輸入頁數(shù)翻頁]]></Title>
            <Description><![CDATA[]]></Description>
            <PicUrl>http://autoguitar.duapp.com/1.jpg</PicUrl>
            <Url><![CDATA[]]></Url>
            </item>";
              while($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 ="此項功能尚未開發(fā)";  
        }
        $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內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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