php进行微信文本安全校验老是提示数据格式错误，求大佬解答

Question

代码：

$text=$_GET['text'];//文本内容

$data = array(

    'openid'=>$ openid,

    '内容'=>$text,

    '版本'=>2,

    '场景'=>3

);

$data = http_build_query($data);

$url = 'https://api.weixin.qq.com/wxa/msg_sec_check?access_token='.$access_token;

$ch = curl_init();

curl_setopt($ch,CURLOPT_URL,$url);

curl_setopt($ch,CURLOPT_HEADER,0);

curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);

curl_setopt($ch, CURLOPT_POST, 1);//POST提交

curl_setopt($ch,CURLOPT_POSTFIELDS,$data);/ /POST数据

$结果=curl_exec($ch);

echo $结果;

curl_close($ch);

输出结果：

data: {errcode: 47001, errmsg: "数据格式错误rid: 63608120-7a9be7c8-1bf52c51"}