微信公众号开发的第一个例子

以下的Index.php文件是基于PHP 5.6.30写的一个微信公众号的例子

代码如下

valid();
}else{
    $wechatObj->responseMsg();
}

class wechatCallbackapiTest
{
    public function valid()
    {
        $echoStr = $_GET["echostr"];
        if($this->checkSignature()){
            header('content-type:text');
            echo $echoStr;
            exit;
        }
    }

    private function checkSignature()
    {
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];

        $token = TOKEN;
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr, SORT_STRING);
        $tmpStr = implode( $tmpArr );
        $tmpStr = sha1( $tmpStr );

        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }

    public function responseMsg()
    {
//        在高版本 php 的发版说明中都有 $HTTP_RAW_POST_DATA 即将（已经）取消，请改用从 php://input 中读取 的声明
//        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
        $postStr = file_get_contents('php://input');

        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($keyword == "?" || $keyword == "？")
            {
                $msgType = "text";

//              设置时区
                date_default_timezone_set("Asia/Shanghai");
                $contentStr = date("Y-m-d H:i:s",time());
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                echo $resultStr;
            }
        }else{
            echo "";
            exit;
        }
    }
}
?>

参考链接

https://www.cnblogs.com/txw1958/p/wechat-tutorial.html