支持多种文件类型的-.doc

错误,args_empty = 参数错误。,file_not_exists = 文件不存在！,file_not_readable = 文件不可读！,);var $MIMETypes = array( ez = application/andrew-inset, hqx = application/mac-binhex40, cpt = application/mac-compactpro, doc = application/msword, bin = application/octet-stream, dms = application/octet-stream, lha = application/octet-stream, lzh = application/octet-stream, exe = application/octet-stream, class = application/octet-stream, so = application/octet-stream, dll = application/octet-stream, oda = application/oda, pdf = application/pdf, ai = application/postscrpt, eps = application/postscrpt, ps = application/postscrpt, smi = application/smil, smil = application/smil, mif = application/vnd.mif, xls = application/vnd.ms-excel, ppt = application/vnd.ms-powerpoint, wbxml = application/vnd.wap.wbxml, wmlc = application/vnd.wap.wmlc, wmlsc = application/vnd.wap.wmlscrptc, bcpio = application/x-bcpio, vcd = application/x-cdlink, pgn = application/x-chess-pgn, cpio = application/x-cpio, csh = application/x-csh, dcr = application/x-director, dir = application/x-director, dxr = application/x-director, dvi = application/x-dvi, spl = application/x-futuresplash, gtar = application/x-gtar, hdf = application/x-hdf, js = application/x-javascrpt, skp = application/x-koan, skd = application/x-koan, skt = application/x-koan, skm = application/x-koan, latex = application/x-latex, nc = application/x-netcdf, cdf = application/x-netcdf, sh = application/x-sh, shar = application/x-shar, swf = application/x-shockwave-flash, sit = application/x-stuffit, sv4cpio = application/x-sv4cpio, sv4crc = application/x-sv4crc, tar = application/x-tar, tcl = application/x-tcl, tex = application/x-tex, texinfo = application/x-texinfo, texi = application/x-texinfo, t = application/x-troff, tr = application/x-troff, roff = application/x-troff, man = application/x-troff-man, me = application/x-troff-me, ms = application/x-troff-ms, ustar = application/x-ustar, src = application/x-wais-source, xhtml = application/xhtml+xml, xht = application/xhtml+xml, zip = application/zip, au = audio/basic, snd = audio/basic, mid = audio/midi, midi = audio/midi, kar = audio/midi, mpga = audio/mpeg, mp2 = audio/mpeg, mp3 = audio/mpeg,wma = audio/mpeg, aif = audio/x-aiff, aiff = audio/x-aiff, aifc = audio/x-aiff, m3u = audio/x-mpegurl, ram = audio/x-pn-realaudio, rm = audio/x-pn-realaudio, rpm = audio/x-pn-realaudio-plugin, ra = audio/x-realaudio, wav = audio/x-wav, pdb = chemical/x-pdb, xyz = chemical/x-xyz, bmp = image/bmp, gif = image/gif, ief = image/ief, jpeg = image/jpeg, jpg = image/jpeg, jpe = image/jpeg, png = image/png, tiff = image/tiff, tif = image/tiff, djvu = image/vnd.djvu, djv = image/vnd.djvu, wbmp = image/vnd.wap.wbmp, ras = image/x-cmu-raster, pnm = image/x-portable-anymap, pbm = image/x-portable-bitmap, pgm = image/x-portable-graymap, ppm = image/x-portable-pixmap, rgb = image/x-rgb, xbm = image/x-xbitmap, xpm = image/x-xpixmap, xwd = image/x-xwindowdump, igs = model/iges, iges = model/iges, msh = model/mesh, mesh = model/mesh, silo = model/mesh, wrl = model/vrml, vrml = model/vrml, css = text/css, html = text/html, htm = text/html, asc = text/plain, txt = text/plain, rtx = text/richtext, rtf = text/rtf, sgml = text/sgml, sgm = text/sgml, tsv = text/tab-separated-values, wml = text/vnd.wap.wml, wmls = text/vnd.wap.wmlscrpt, etx = text/x-setext, xsl = text/xml, xml = text/xml, mpeg = video/mpeg, mpg = video/mpeg, mpe = video/mpeg, qt = video/quicktime, mov = video/quicktime, mxu = video/vnd.mpegurl, avi = video/x-msvideo, movie = video/x-sgi-movie, wmv = application/x-mplayer2,ice = x-conference/x-cooltalk, ); function download($filepath=,$downname=)if($filepath = AND !$this-filepath)$this-ErrInfo = $this-_LANGerr . : . $this-_LANGargs_empty;return false;if($filepath = ) $filepath = $this-filepath;if(!file_exists($filepath)$this-ErrInfo = $this-_LANGerr . : . $this-_LANGfile_not_exists;return false;if($downname = AND !$this-downname) $downname = $filepath;if($downname = ) $downname = $this-downname;/ 文件扩展名 $fileExt = substr(strrchr($filepath, .), 1); / 文件类型 $fileType = $this-MIMETypes$fileExt ? $this-MIMETypes$fileExt : application/octet-stream; / 是否是图片 $isImage = False; /* 简述: getimagesize(), 详见手册 说明: 判定某个文件是否为图片的有效手段, 常用在文件上传验证 */ $imgInfo = getimagesize($filepath); if ($imgInfo2 & $imgInfobits) $fileType = $imgInfomime;/ 支持不标准扩展名$isImage = True; / 显示方式if($this-is_attachment) $attachment = attachment; / 指定弹出下载对话框else $attachment = $isImage ? inline : attachment; / 读取文件if (is_readable($filepath) /* 简述: ob_end_clean() 清空并关闭输出缓冲, 详见手册 说明: 关闭输出缓冲, 使文件片段内容读取至内存后即被送出, 减少资源消耗 */ ob_end_clean(); /* HTTP头信息: 指示客户机可以接收生存期不大于指定时间（秒）的响应 */ header(Cache-control: max-age=31536000); /* HTTP头信息: 缓存文件过期时间(格林威治标准时) */ header(Expires: . gmdate(D, d M Y H:i:s, time()+31536000) . GMT); /* HTTP头信息: 文件在服务期端最后被修改的时间 Cache-control,Expires,Last-Modified 都是控制浏览器缓存的头信息 在一些访问量巨大的门户, 合理的设置缓存能够避免过多的服务器请求, 一定程度下缓解服务器的压力 */ header(Last-Modified: . gmdate(D, d M Y H:i:s , filemtime($filepath) . GMT); /* HTTP头信息: 文档的编码(Encode)方法, 因为附件请求的文件多样化, 改变编码方式有可能损坏文件, 故为none */ header(Content-Encoding: none); /* HTTP头信息: 告诉浏览器当前请求的文件类型. 1.始终指定为application/octet-stream, 就代表文件是二进制流, 始终提示下载. 2.指定对应的类型, 如请求的是mp3文件, 对应的MIME类型是audio/mpeg, IE就会自动启动Windows Media Player进行播放. */ header(Content-type: . $fileType); /* HTTP头信息: 如果为attachment, 则告诉浏览器, 在访问时弹出”文件下载”对话框, 并指定保存时文件的默认名称(可以与服务器的文件名不同) 如果要让浏览器直接显示内容, 则要指定为inline, 如图片, 文本 */ header(Content-Disposition: . $attachment . ; filename= .