==============此代码仅供参考======================

=====php如何获取文件数据以及计算MD5Code=======

php实例代码如下：
        $len = strlen($this->params['biz_content']['fileData']);
        $bytes = array();
        for($i=0;$i<$len;$i++) {
            if(ord($this->params['biz_content']['fileData'][$i]) >= 128){
                $byte = ord($this->params['biz_content']['fileData'][$i]) - 256;
            }else{
                $byte = ord($this->params['biz_content']['fileData'][$i]);
            }
            $bytes[] =  $byte;
        }
        $this->params['biz_content']['fileData'] = $bytes;//implode(',', $bytes);

public function psbcFileUpload(){
    $path = 'G:\guiyaun\20210506114611.jpg';
    //方法一:
    // $this->params['biz_content']['fileData'] = file_get_contents($path);
    // $len = strlen($this->params['biz_content']['fileData']);
    // $bytes = array();
    // for($i=0;$i<$len;$i++) {
    //     if(ord($this->params['biz_content']['fileData'][$i]) >= 128){
    //
    //         $byte = ord($this->params['biz_content']['fileData'][$i]) - 256;
    //     }else{
    //         $byte = ord($this->params['biz_content']['fileData'][$i]);
    //     }
    //     $bytes[] =  $byte;
    // }
    //方法二:
    $byteArray = unpack("c*",file_get_contents($path));
    foreach ($byteArray as $k=>$v){
        $bytes[] = $v;

    }
    //方法二end

    $wx_data["acsMerNo"] = HAO_YI_LIAN_ACS_MER_NO;//业务商户号
    $wx_data["fileName"] =  '20210506114611';//文件名称
    $wx_data["fileType"] = 'jpg';//文件类型
    // $wx_data["md5Code"] = hash_file('md5',$path);
    $wx_data["md5Code"] = md5_file($path);
    $wx_data["fileData"] = $bytes;//文件转换成byte数组

    // $wx_data .='&';
    $haoYiLian = Lib_Haoyilian_Haoyilian::init();
    $wx_order = $haoYiLian->apiRequest("gnete.psbc.electronic.PsbcFile", "upload", $wx_data);
    dump($wx_order);
}