1.开发者只能回复1条图文消息；其余场景最多可回复8条图文消息
2.foreach()遍历拼接
index.php
<?php
include './common.php';
//因为define的常量是全局的，所以放在该文件也是可以的
define('TOKEN','weixin');
$wechat = new weChat();
//如果echostr 存在则需要验证第三方服务器的真实性
if($_GET["echostr"]){
$wechat->valid();
}else{
$wechat->responseMeg();
}
common.php 这里重点看replyNews()方法
<?php
class weChat
{
//验证消息，检验签名是否成功
public function valid()
{
$echostr = $_GET["echostr"];
if($this->checkSignature()){
echo "$echostr";
}else{
echo 'error';
exit;
}
}
//检验签名
public function checkSignature()
{
//第三方服务器与微信服务器进行消息接入，
// https://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Access_Overview.html
// 接收微信服务器发送的四个验证参数
//加密签名
$signature = $_GET["signature"];
//时间戳
$timestamp = $_GET["timestamp"];
//随机数
$nonce = $_GET["nonce"];
//随机字符串
$echostr = $_GET["echostr"];
// TOKEN
// define('TOKEN','weixin');
//1.进行字典序排序
$tmpArr = array(TOKEN, $timestamp, $nonce);
sort($tmpArr, SORT_STRING);
//2.将三个参数字符串拼接成一个字符串进行sha1加密
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
//3.开发者获得加密后的字符串可与signature对比，标识该请求来源于微信
if( $tmpStr == $signature ){
// echo "$echostr";
return true;
}else{
return false;
}
}
//处理用户请求消息
public function responseMeg()
{
//服务器接收微信POST发送的xml格式原生数据
// $postStr = $GLOBALS['HTTP_RAW_POST_DATA'];
$postStr = file_get_contents("php://input");
if (!$postStr) {
echo "post data error";
exit;
}
//将xml格式转对象形式输出 LIBXML_NOCDATA - 将 CDATA 设置为文本节点
$postObj = simplexml_load_string($postStr,'SimpleXMLElement',LIBXML_NOCDATA);
//处理消息的类型
$MsgType = $postObj->MsgType;
//根据xml对象与消息类型处理
$this->checkMsgType($postObj,$MsgType);
}
//处理消息类型
public function checkMsgType($postObj,$MsgType)
{
switch ($MsgType) {
case 'text':
//处理文本消息
$this->receiveText($postObj);
break;
case 'image':
//处理图片消息
$this->receiveImage($postObj);
break;
default:
break;
}
}
//处理文本消息
public function receiveText($postObj)
{
$Content = $postObj->Content;
switch ($Content) {
case '点歌':
$str = "欢迎来到点歌系统\n";
//遍历文件
$files = scandir('music');
$i = 1;
foreach ($files as $key => $value) {
if ($value !='.' && $value !='..') {
$str .=$i.'-'.$value."\n";
$i++;
}
}
$str .="请输入对应的编号试听歌曲\n";
$this->replyText($postObj,$str);
break;
case '笑话':
$this->replyText($postObj,$str);
break;
case '新闻':
$data=array(
array(
'Title'=>'3000万的故事',
'Description'=>'3000万的颠沛流离',
'PicUrl'=>'https://www.liuyuanshan.top/wechat/img/1.jpg',
'Url'=>'http://www.baidu.com',
),
array(
'Title'=>'3001万的故事',
'Description'=>'3000万的颠沛流离',
'PicUrl'=>'https://www.liuyuanshan.top/wechat/img/2.jpg',
'Url'=>'http://www.baidu.com',
),
array(
'Title'=>'3002万的故事',
'Description'=>'3000万的颠沛流离',
'PicUrl'=>'https://www.liuyuanshan.top/wechat/img/3.jpg',
'Url'=>'http://www.baidu.com',
),
);
$this->replyNews($postObj,$data);
break;
default:
//正则匹配输入选择歌曲的数字
if(preg_match('/^\d{1,2}$/',$Content)){
//遍历文件
$files = scandir('music');
$i = 1;
foreach ($files as $key => $value) {
if ($value !='.' && $value !='..') {
if($Content==$i){
$data = array(
'Title' => $value,
'Description'=>$value,
'MusicUrl'=>'https://www.liuyuanshan.top/wechat/music/'.$value,
'HQMusicUrl'=>'https://www.liuyuanshan.top/wechat/music/'.$value
);
$this->replyMusic($postObj,$data);
}
$i++;
}
}
}
break;
}
}
//处理图片消息
public function receiveImage($postObj)
{
$MediaId = $postObj->MediaId;
$this->replyImage($postObj,$MediaId);
}
//回复文本消息
public function replyText($postObj,$Content)
{
$xml = '<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%d</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>';
echo sprintf($xml,$postObj->FromUserName,$postObj->ToUserName,time(),$Content);
}
//回复图片消息
public function replyImage($postObj,$MediaId)
{
$xml = '<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%d</CreateTime>
<MsgType><![CDATA[image]]></MsgType>
<Image>
<MediaId><![CDATA[%s]]></MediaId>
</Image>
</xml>';
echo sprintf($xml,$postObj->FromUserName,$postObj->ToUserName,time(),$MediaId);
}
//回复音乐消息
public function replyMusic($postObj,$data)
{
$xml = '<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%d</CreateTime>
<MsgType><![CDATA[music]]></MsgType>
<Music>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<MusicUrl><![CDATA[%s]]></MusicUrl>
<HQMusicUrl><![CDATA[%s]]></HQMusicUrl>
</Music>
</xml>';
echo sprintf($xml,$postObj->FromUserName,$postObj->ToUserName,time(),$data['Title'],$data['Description'],$data['MusicUrl'],$data['HQMusicUrl']);
}
//回复图文消息 这里似乎开者只能回复一条消息，其他场景最多可回复8条
public function replyNews($postObj,$data)
{
//遍历拼接三遍
foreach ($data as $key => $value) {
$str.="<item>
<Title><![CDATA[".$value["Title"]."]]></Title>
<Description><![CDATA[".$value["Description"]."]]></Description>
<PicUrl><![CDATA[".$value["PicUrl"]."]]></PicUrl>
<Url><![CDATA[".$value["Url"]."]]></Url>
</item>";
}
$xml = '<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%d</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>'.count($data).'</ArticleCount>
<Articles>
'.$str.'
</Articles>
</xml>';
echo sprintf($xml,$postObj->FromUserName,$postObj->ToUserName,time());
}
}
显示结果页
