微信学习之自动回复文本

<?php define("TOKEN","echo_server");function checkSignature(){	//获取GET参数	$signature=$_GET['signature'];	$nonce=$_GET['nonce'];	$timestamp=$_GET['timestamp'];	$echostr=$_GET['echostr'];		//把nonce，timestamp,token组装到数组里并做排序	$tmpArr=array($nonce,$timestamp,TOKEN);	sort($tmpArr);		//把数组中的元素合并成字符串	$tmpStr=implode($tmpArr);		//sha1加密	$tmpStr=sha1($tmpStr);		//判断加密后的字符串是否和signatures相等	if($tmpStr==$signature){		return true;	}	return false;}if(false==checkSignature()){	exit(0);}//获取echostr$echostr=$_GET['echostr'];if($echostr){	echo $echostr;	exit(0);}//获取post数据$PostData=$HTTP_RAW_POST_DATA;//判断post数据是否为空if(!$PostData){	echo "wrong input";	exit(0);}//解析xml字符串$xmlObj=simplexml_load_string($PostData,"SimpleXMLElement",LIBXML_NOCDATA);if(!$xmlObj){	echo "wrong input";	exit(0);}//获取FromUserName$fromUserName=$xmlObj->FromUserName;//获取ToUserName$toUserName=$xmlObj->ToUserName;//获取MsgType$msgType=$xmlObj->MsgType;if('text'!=$msgType){	$retMsg="只支持文本信息";}else{	$content=$xmlObj->Content;	$retMsg=$content;}//输出消息的xml模板$retTmp="<xml>			<ToUserName><![CDATA[%s]]></ToUserName>			<FromUserName><![CDATA[%s]]></FromUserName>			<CreateTime>%s</CreateTime>			<MsgType><![CDATA[text]]></MsgType>			<Content><![CDATA[%s]]></Content>			<FuncFlag>0</FuncFlag>		</xml>";//对消息模板中的通配符进行替换$resultStr=sprintf($retTmp,$fromUserName,$toUserName,time(),$retMsg);echo $resultStr;?>

<a href="http://s.click.taobao.com/t?e=m%3D2%26s%3D8ZP%2B9BFH8dccQipKwQzePCperVdZeJviEViQ0P1Vf2kguMN8XjClAqdTPP%2BnwUxNRr%2B4el50HJcWjwYIGsh1SNLb45UgjmLHwHV06zwZE474PBd4WwVOW%2Bdn1BbglxZYxUhy8exlzcq9AmARIwX9K%2BnbtOD3UdznPV1H2z0iQv9eY%2By0blbhscYl7w3%2FA2kb" target="_blank"><img src="http://gtms01.alicdn.com/tps/i1/T1LuRAFspSXXX1pzZP-760-90.jpg" /></a>