dedecms 微信接口开发

<?php
// 获取微信服务器发送过来的数据
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
if (!empty($postStr)) {
    $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
    $fromUsername = $postObj->FromUserName;
    $toUsername = $postObj->ToUserName;
    $keyword = trim($postObj->Content);

    // 处理用户发送的消息
    if ($keyword == "hello") {
        $msgType = "text";
        $contentStr = "Hello, welcome to our website!";
        $resultStr = "
            <xml>
                <ToUserName><![CDATA[$fromUsername]]></ToUserName>
                <FromUserName><![CDATA[$toUsername]]></FromUserName>
                <CreateTime>" . time() . "</CreateTime>
                <MsgType><![CDATA[$msgType]]></MsgType>
                <Content><![CDATA[$contentStr]]></Content>
            </xml>";
        echo $resultStr;
    } else {
        echo "success";
    }
} else {
    echo "";
}
?>