常用的mimetype集合

$list = 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',

                'rar'     => 'application/x-rar-compressed',

                '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',

                'ods'     => 'application/vnd.oasis.opendocument.spreadsheet',

                'odp'     => 'application/vnd.oasis.opendocument.presentation ',

                'sxc'     => 'application/vnd.sun.xml.calc',

                'odt'     => 'application/vnd.oasis.opendocument.text',

    );