//token?驗證是通過的，但是關注事件的反饋不成功，查了幾遍代碼，改了幾個錯誤，還是不行。

<?php



class?IndexAction?extends?Action?{

????protected?function?_initialize()?{
????????header("Content-Type:text/html;?charset=utf-8");
????}
????public?function?index(){
		//獲得參數?signature?nonce?token?timestamp?echostor
		$nonce		=$_GET['nonce'];
		$token		='we';
		$timestamp	=$_GET['timestamp'];
		$echostr	=$_GET['echostr'];
		$signature	=$_GET['signature'];
		//形成數組，然后按字典序排列
		$array	=array();
		$array	=array($nonce,$timestamp,$token);
		sort($array);
		//拼接成字符串，加密，然后與signature校驗
		$str	=sha1(implode($array));
		if($str==$signature?&&?$echostr){
????????????//第一次介入微信API接口，之后就沒有$echostr這個參數了
			echo	$echostr;
			exit;
????????}else{
????????????
????????	$this->reponseMsg();
????????}
	}
????
????//接收事件推送并回復
????public?function?reponseMsg(){
????????//1.獲取到微信送過來的post數據（xml形式）
????????$postArr	=$GLOBALS['HTTP_RAW_POST_DATA'];
????????//2.處理消息類型，并設置回復類型和內容
????????$postObj?=$simplexml_load_string($postArr);
????????//$postObj->ToUserName?=?'';
????????//$postObj->FromUserName?=?'';
????????//$postObj->CreateTime?=?'';
????????//$postObj->Msgtype?=?'';
????????//$postObj->Event?=?'';
????????//判斷該數據包是否是消息訂閱的時間推送
????????
????????if(strtolower($postObj->MsgType?==?'event'){//strtolower將字符串轉換成小寫形式
???????????//如果是關注事件subscribe?事件
????????????if(strtolower($postObj->Event?==?'subscribe')){
????????????	$toUser?=?$postObj->FromUserName;
????????????	$fromUser?=?$postObj->ToUserName;
????????????????$time?=?time();
????????????????$Msgtype?=?'text';
????????????????$Content?=?'歡迎關注我們的公眾賬號,zxy';
????????????????$template="?<xml>
							<ToUserName><![CDATA[%s]]></ToUserName>
							<FromUserName><![CDATA[%s]]></FromUserName>
							<CreateTime>%s</CreateTime>
							<MsgType><![CDATA[%s]]></MsgType>
							<Content><![CDATA[%s]]></Content>
							</xml>";
????????????????$info	?=sprintf($template,$toUser,$fromUser,$time,$msgType,$content);
????????????????echo?$info;
????????????}
????????}
????}
????

}

?>