首先在微信公眾平臺(網址：https://mp.weixin.qq.com)申請一個訂閱號，然后在開發里找到開發者工具點擊公眾平臺測試賬號，在測試賬號內進行微信開發實驗。? ? 1. 設置一個自己的有效的域名網址和TOKEN(就是暗號)，TOKEN一定要與PHP代碼中的TOKEN驗證一致否則會一直配置失敗(寫有這段代碼的文件一定要傳到有效的域名網址內。與設置的網址必須相同)。? ? 下面是PHP代碼(在微信公眾平臺開發里的開發者文檔內有部分代碼) 。

//define your token

define("TOKEN", "weixin");

$wechatObj = new wechatCallbackapiTest();

$wechatObj->run();

class wechatCallbackapiTest

{

public function run()

{

if ($this->checkSignature()==false) {

die('非法請求');

}

if (isset($_GET["echostr"])) {

$echostr = $_GET["echostr"];

echo $echostr;

exit();

} else {

$this->responseMsg();

}

/*$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 = "

%s

0

";

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;

}

}

}

?>

2.自動回復?首先重新寫一個方法在上面那個文件夾里，再調用此方法，注意不能重名。以下代碼是給訂閱號發天氣，它會回復天氣晴朗，發放假，它會回復你“不好好奮斗瞎想啥？”回復其他則會回復"Welcome to wechat world!"public function responseMsg()

{

//get post data, May be due to the different environments

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

file_put_contents('msg.txt', $postStr,FILE_APPEND);

//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();

//$msgType = $postObj->MsgType;//消息類型

//$event = $postObj->Event;//時間類型，subscribe(訂閱)、unsubscribe(取消訂閱)

$textTpl = "

%s

0

";

if(!empty( $keyword ))

{

$msgType = "text";

$contentStr = $this->autohuifu($keyword);

//$contentStr = "Welcome to wechat world!";

$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);

echo $resultStr;

}else{

echo "Input something...";

}

}else {

echo "";

exit;

}

}

public function autohuifu($keyword){

if($keyword =='天氣'){

$contentStr = "天氣晴朗";

}else if($keyword =='放假'){

$contentStr = "成天不好好奮斗瞎想啥？";

}else{

$contentStr = "Welcome to wechat world!";

}

return $contentStr;