微信公共平台给公共号发消息成功的代码

<?php<br>/**<br>  * wechat php test<br>  */<br><br>//define your token<br>define("TOKEN", "weixin");<br>$wechatObj = new wechatCallbackapiTest();<br>$wechatObj->valid();<br><br>class wechatCallbackapiTest<br>{<br>	public function valid()<br>    {<br>        $echoStr = $_GET["echostr"];<br><br>        //valid signature , option<br>        if($this->checkSignature()){<br>        	echo $echoStr;<br>        	exit;<br>        }<br>    }<br><br>    public function responseMsg()<br>    {<br>		//get post data, May be due to the different environments<br>		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];<br><br>      	//extract post data<br>		if (!empty($postStr)){<br>                <br>              	$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);<br>                $fromUsername = $postObj->FromUserName;<br>                $toUsername = $postObj->ToUserName;<br>                $keyword = trim($postObj->Content);<br>                $time = time();<br>                $textTpl = "<xml><br>							<ToUserName><![CDATA[%s]]></ToUserName><br>							<FromUserName><![CDATA[%s]]></FromUserName><br>							<CreateTime>%s</CreateTime><br>							<MsgType><![CDATA[%s]]></MsgType><br>							<Content><![CDATA[%s]]></Content><br>							<FuncFlag>0</FuncFlag><br>							</xml>";             <br>				if(!empty( $keyword ))<br>                {<br>              		$msgType = "text";<br>                	$contentStr = $keyword;<br>                	$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);<br>                	echo $resultStr;<br>                }else{<br>                	echo "Input something...";<br>                }<br><br>        }else {<br>        	echo "";<br>        	exit;<br>        }<br>    }<br>		<br>	private function checkSignature()<br>	{<br>        $signature = $_GET["signature"];<br>        $timestamp = $_GET["timestamp"];<br>        $nonce = $_GET["nonce"];	<br>        		<br>		$token = TOKEN;<br>		$tmpArr = array($token, $timestamp, $nonce);<br>		sort($tmpArr);<br>		$tmpStr = implode( $tmpArr );<br>		$tmpStr = sha1( $tmpStr );<br>		<br>		if( $tmpStr == $signature ){<br>			return true;<br>		}else{<br>			return false;<br>		}<br>	}<br>}<br><br>?>