thinkphp5.1把图片路径转换成文件格式传给后台

$param = array( 'token'=>'f7463452qt8ks4546', 'sid'=>$sid, 'tel'=>$params['phone'], 'name'=>$params['prize_name'], 'address'=>$params['mailing_address'], 'template'=>new \CurlFile($_SERVER['DOCUMENT_ROOT'].$templateUrls), 'license'=>new \CurlFile($_SERVER['DOCUMENT_ROOT'].$licenseUrls), //里面是绝对路径 );