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【PHP】微信公共平台接口实例

作者:沉淀岁月 / 发布于2013/9/10/ 827


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

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