获取一个rar格式文件（压缩包），对方返回这些，请问怎么处理下载来

Question

$arr = [
    'fileurl'=>'',
    'uploadtype'=>'20',
    'fileid'=>'*0*eO7SsKNr2PQTlqxi3TVgYeimS4KBbxDQPgKSswBv1YsngmLB4FKzVGwZhY+MTDk/bzK58bxtY59daaLuC5HNobhmZHMOtkBvNNDiQXq2c0qMtn5PWxsxYFuv40ZG3N9s9qe2X7MWN/38WIHiB771JpaaHkrdtvCzNp/V+DwwC0U+ICCXUYszimIKkf8IfD5l99vHNw/CST0TR0WdxfRDwA==',
    'filesize'=>'7899640',
    "filetype"=>"rar",
    "filename"=>"2017七夕推广工具包.rar",
    "filepath"=>"wwfile://openDocument?ftnType=20&fileId=*0*eO7SsKNr2PQTlqxi3TVgYeimS4KBbxDQPgKSswBv1YsngmLB4FKzVGwZhY%2BMTDk%2FbzK58bxtY59daaLuC5HNobhmZHMOtkBvNNDiQXq2c0qMtn5PWxsxYFuv40ZG3N9s9qe2X7MWN%2F38WIHiB771JpaaHkrdtvCzNp%2FV%2BDwwC0U%2BICCXUYszimIKkf8IfD5l99vHNw%2FCST0TR0WdxfRDwA%3D%3D&fileName=2017%E4%B8%83%E5%A4%95%E6%8E%A8%E5%B9%BF%E5%B7%A5%E5%85%B7%E5%8C%85.rar&fileSize=7899640&md5=",
    "extdata"=>"{\"fileSize\":\"7899640\"}",
    "isfile"=>true,
    "className"=>"ww_icon_NoticeAttachmentZip",
    "fileItemClassName"=>"NoticeAttachmentZip"
];

对方返回的是这些数据，请问怎么处理这个数据，下载这个rar格式文件？

Answer 1

结束此问题~~~~

Answer 2

能不能通过字段filepath 来获取到呢？