php curl查看获取请求头-银联云闪付header请求对方接收不到

使用swoft1的crul请求当请求头有大写字母时会转为小写字母，银联云闪付收不到

改用原生CURL请求

设置header

$headers = array(
            "bizMethod: ".$header['bizMethod'],
            "appId: ".$header['appId'],
            "version: ".$header['version'],
            "reqId: ".$header['reqId'],
            "sign: ".$header['sign'],
            "Content-Length: ".strlen($dataStr),
        );

发送请求

		$url = '';
		$data= '';		//json串
        $curl = curl_init ();
        curl_setopt ( $curl, CURLOPT_URL, $url );
        curl_setopt ( $curl, CURLOPT_HEADER, 0 );
        curl_setopt ( $curl, CURLOPT_TIMEOUT, 0 );
        curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt($curl, CURLOPT_HTTPHEADER, array_merge(array('Content-Type: application/json;charset=utf-8'),$headers));//重点
 //            curl_setopt($curl, CURLINFO_HEADER_OUT, TRUE);//注意加这句用 $info = curl_getinfo($curl);显示请求头
        curl_setopt($curl, CURLOPT_POST, 1);//post方式提交
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);//要提交的信息json_encode($data)

        $rs = curl_exec ( $curl ); // 执行cURL抓取页面内容
//        $info = curl_getinfo($curl);
//        var_dump($info);
        curl_close ( $curl );
/       var_dump($rs );

php curl查看获取请求头-银联云闪付header请求对方接收不到