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微信公众号三方平台开发代微信公众号接收消息事件并响应
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require_once(dirname(__FILE__). /wxBizMsgCrypt.php );
//encodingAesKey和token均为申请三方平台是所填写的内容
$appId = 三方平台appid ;
$timeStamp = empty ( $_GET [ timestamp ] ) ? "" : trim ($_GET [ timestamp ] );
$nonce = empty ( $_GET [ nonce ] ) ? "" : trim ( $_GET[ nonce ] );
$msg_sign = empty ( $_GET [ msg_signature ] ) ? "" : trim( $_GET [ msg_signature ] );
$pc = new \WXBizMsgCrypt ( $token, $encodingAesKey, $appId );
$postArr = $GLOBALS[ HTTP_RAW_POST_DATA ];
$msg = ;
$errCode= $pc->decryptMsg($msg_sign, $timeStamp, $nonce, $postArr,$msg);
解密后，当$errCode返回值为0时，代表解密成功，下一步我们就需要对消息进行解析处理：
$postObj =simplexml_load_string($msg, SimpleXMLElement ,LIBXML_NOCDATA);
if (strtolower($postObj -> MsgType) == event ){
//如果是关注subscribe事件
if(strtolower($postObj->Event == subscribe )){
$public_name= strval($postObj->ToUserName);
$map[ public_name ]=$public_name;
$cont =M( Subscribe )->where($map)->find();
//回复用户消息
$content =$cont[ content ];
responseText($postObj,$content);
}
}
if(strtolower($postObj -> MsgType) == text &&trim($postObj->Content)== 图文 ){
//这一步可从数据库中查询得到
$arr = array(
array(
title => test1 ,
description => test1 ,
picUrl => https://mmbiz.qpic.cn/mmbiz/mLiaE7fSUysSbbqzicX2LVsLL1HsXMRV0m6uicfiaSX9Aic43BA5vnpFOBMWAoEuaVDicoOX4HzGT8OT5QK6DRs14VkQ/0 ,
url => https://mp.weixin.qq.com/s?__biz=MjM5NzY4MDc0MA==&tempkey=mKI6U0rlJZofvceyQdxTPAYtneMxKyhWy52ytbUZfOJzFEHMDqmYTQLQWrkrSRky&appmsgid=10000002&itemidx=1&sign=99baf31f45e2357af575c63b5b303b6a#wechat_redirect ,
),
array(
title => test2 ,
description => test2 ,
picUrl => https://mmbiz.qpic.cn/mmbiz_jpg/mLiaE7fSUysTFDEZQTOvXleYwYqFN1JeLwM66Zg7dHjK3aHQxdVtwGTJgzuKJRuZCBHljIvVLkvZ2CADJ6paJYQ/0?wx_fmt=jpeg ,
)
);
responseNews($postObj,$arr);
}
$public_name= strval($postObj->ToUserName);
$keyword = strval(trim($postObj-> Content));
$log[ public_name ]=$public_name;
$log[ keyword ] =array( like , % .$keyword. % );
$con =M( Keyword )->where($log)->select();
foreach ($con as $vo=> $k){
$conn=$con[$vo][ content ];
}
if($conn){
$content =$conn;
}else{
$lg[ public_name ]=$public_name;
$lg[ keyword ]= ;
$con =M( Keyword )->where($lg)->select();
foreach($con as $vo => $k){
$conn=$con[$vo][ content ];
}
$content =$conn;
}
responseText($postObj,$content);
以上用到的responseText（）、responseNews（）鉴于代码模块化，而且方便复用，所以单独用方法写出，其他不多说了，具体见代码：
1）回复文本消息
function responseText($postObj,$content){
$template ="
%s
$fromUser = $postObj ->ToUserName;
$toUser = $postObj -> FromUserName;
$time = time();
$msgType = text ;
$res =sprintf($template,$toUser,$fromUser,$time,$msgType,$content);
$appId = 三方平台appid ;
$pc = new \WXBizMsgCrypt ($token, $encodingAesKey, $appId );
$encryptMsg = ;
$errCode =$pc->encryptMsg($res,$_GET [ timestamp ], $_GET [ nonce ], $encryptMsg);
if($errCode ==0){
$res = $encryptMsg;
}
echo $res;
}
2）回复图文消息
function responseNews($postObj,$arr){
$toUser = $postObj -> FromUserName;
$fromUser = $postObj -> ToUserName;
$template ="
%s
".count($arr)."
";
foreach($arr as $k=>$v){
$template.="
}
$template.="
$time = time();
$msgType = news ;
$res =sprintf($template,$toUser,$fromUser,$time,$msgType);
$appId = 三方平台appid ;
$pc = new \WXBizMsgCrypt ($token, $encodingAesKey, $appId );
$encryptMsg = ;
$errCode =$pc->encryptMsg($res,$_GET [ timestamp ], $_GET [ nonce ], $encryptMsg);
if($errCode ==0){
$res = $encryptMsg;
}
echo $res;
}
需要注意的是，在代微信公众号实现其功能的时候，接收的消息都需要解密，对回复的内容也必须进行加密再进行回复。
接收消息事件完整代码：
public function reponseMsg(){
require_once(dirname(__FILE__). /wxBizMsgCrypt.php );
//encodingAesKey和token均为申请三方平台是所填写的内容
$appId = 三方平台appid ;
$timeStamp = empty ($_GET [ timestamp ] ) ? "" : trim ( $_GET [ timestamp ] );
$nonce = empty ( $_GET[ nonce ] ) ? "" : trim ( $_GET [ nonce ] );
$msg_sign = empty ($_GET [ msg_signature ] ) ? "" : trim ( $_GET [ msg_signature ] );
$pc = new\WXBizMsgCrypt ( $token, $encodingAesKey, $appId );
$postArr =$GLOBALS[ HTTP_RAW_POST_DATA ];
$msg = ;
$errCode =$pc->decryptMsg($msg_sign, $timeStamp, $nonce, $postArr,$msg);
if($errCode == 0){
//处理消息类型，并设置回复类型和内容
$postObj =simplexml_load_string($msg, SimpleXMLElement ,LIBXML_NOCDATA);
//判断该数据包是否是订阅（用户关注）的事件推送
if(strtolower($postObj -> MsgType) == event ){
//如果是关注subscribe事件
if(strtolower($postObj -> MsgType) == event ){
//如果是关注subscribe事件
if(strtolower($postObj->Event == subscribe )){
$public_name= strval($postObj->ToUserName);
$map[ public_name ]=$public_name;
$cont= M( Subscribe )->where($map)->find();
//回复用户消息
$content= $cont[ content ];
responseText($postObj,$content);
}
}
}
if(strtolower($postObj-> MsgType) == text && trim($postObj->Content)== 图文 ){
//这一步可从数据库中查询得到
$arr= array(
array(
title => test1 ,
description => test1 ,
picUrl => https://mmbiz.qpic.cn/mmbiz/mLiaE7fSUysSbbqzicX2LVsLL1HsXMRV0m6uicfiaSX9Aic43BA5vnpFOBMWAoEuaVDicoOX4HzGT8OT5QK6DRs14VkQ/0 ,
url => https://mp.weixin.qq.com/s?__biz=MjM5NzY4MDc0MA==&tempkey=mKI6U0rlJZofvceyQdxTPAYtneMxKyhWy52ytbUZfOJzFEHMDqmYTQLQWrkrSRky&appmsgid=10000002&itemidx=1&sign=99baf31f45e2357af575c63b5b303b6a#wechat_redirect ,
),
array(
title => test2 ,
description => test2 ,
picUrl => https://mmbiz.qpic.cn/mmbiz_jpg/mLiaE7fSUysTFDEZQTOvXleYwYqFN1JeLwM66Zg7dHjK3aHQxdVtwGTJgzuKJRuZCBHljIvVLkvZ2CADJ6paJYQ/0?wx_fmt=jpeg ,
)
);
responseNews($postObj,$arr);
}else{
$public_name=strval($postObj->ToUserName);
$keyword= strval(trim($postObj -> Content));
$log[ public_name ]=$public_name;
$log[ keyword ]= array( like , % .$keyword. % );
$con= M( Keyword )->where($log)->select();
foreach($con as $vo => $k){
$conn=$con[$vo][ content ];
}
if($conn){
$content= $conn;
}else{
$lg[ public_name ]=$public_name;
$lg[ keyword ]= ;
$con= M( Keyword )->where($lg)->select();
foreach($con as $vo => $k){
$conn=$con[$vo][ content ];
}
$content= $conn;
}
responseText($postObj,$content);
}
}
}
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最后更新：2017-10-08 01:52:19