Content-type 的说明 ,即 HTTP请求头的类型有哪些?

'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/postscript',


'eps' => 'application/postscript',


'ps' => 'application/postscript',


'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.wmlscriptc',


'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-javascript',


'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',


'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.wmlscript',


'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',


'ice' => 'x-conference/x-cooltalk',