The same in a PHP associative array

Code: PHP
$mimeTypes = array('.ai'=>'application/postscript',
 '.aif'=>'audio/x-aiff',
 '.aifc'=>'audio/x-aiff',
 '.aiff'=>'audio/x-aiff',
 '.asc'=>'text/plain',
 '.au'=>'audio/basic',
 '.avi'=>'video/x-msvideo',
 '.bcpio'=>'application/x-bcpio',
 '.bin'=>'application/octet-stream',
 '.c'=>'text/plain',
 '.cc'=>'text/plain',
 '.ccad'=>'application/clariscad',
 '.cdf'=>'application/x-netcdf',
 '.class'=>'application/octet-stream',
 '.cpio'=>'application/x-cpio',
 '.cpt'=>'application/mac-compactpro',
 '.csh'=>'application/x-csh',
 '.css'=>'text/css',
 '.dcr'=>'application/x-director',
 '.dir'=>'application/x-director',
 '.dms'=>'application/octet-stream',
 '.doc'=>'application/msword',
 '.drw'=>'application/drafting',
 '.dvi'=>'application/x-dvi',
 '.dwg'=>'application/acad',
 '.dxf'=>'application/dxf',
 '.dxr'=>'application/x-director',
 '.eps'=>'application/postscript',
 '.etx'=>'text/x-setext',
 '.exe'=>'application/octet-stream',
 '.ez'=>'application/andrew-inset',
 '.f'=>'text/plain',
 '.f90'=>'text/plain',
 '.fli'=>'video/x-fli',
 '.gif'=>'image/gif',
 '.gtar'=>'application/x-gtar',
 '.gz'=>'application/x-gzip',
 '.h'=>'text/plain',
 '.hdf'=>'application/x-hdf',
 '.hh'=>'text/plain',
 '.hqx'=>'application/mac-binhex40',
 '.htm'=>'text/html',
 '.html'=>'text/html',
 '.ice'=>'x-conference/x-cooltalk',
 '.ief'=>'image/ief',
 '.iges'=>'model/iges',
 '.igs'=>'model/iges',
 '.ips'=>'application/x-ipscript',
 '.ipx'=>'application/x-ipix',
 '.jpe'=>'image/jpeg',
 '.jpeg'=>'image/jpeg',
 '.jpg'=>'image/jpeg',
 '.js'=>'application/x-javascript',
 '.kar'=>'audio/midi',
 '.latex'=>'application/x-latex',
 '.lha'=>'application/octet-stream',
 '.lsp'=>'application/x-lisp',
 '.lzh'=>'application/octet-stream',
 '.m'=>'text/plain',
 '.man'=>'application/x-troff-man',
 '.me'=>'application/x-troff-me',
 '.mesh'=>'model/mesh',
 '.mid'=>'audio/midi',
 '.midi'=>'audio/midi',
 '.mif'=>'application/vnd.mif',
 '.mime'=>'www/mime',
 '.mov'=>'video/quicktime',
 '.movie'=>'video/x-sgi-movie',
 '.mp2'=>'audio/mpeg',
 '.mp3'=>'audio/mpeg',
 '.mpe'=>'video/mpeg',
 '.mpeg'=>'video/mpeg',
 '.mpg'=>'video/mpeg',
 '.mpga'=>'audio/mpeg',
 '.ms'=>'application/x-troff-ms',
 '.msh'=>'model/mesh',
 '.nc'=>'application/x-netcdf',
 '.oda'=>'application/oda',
 '.pbm'=>'image/x-portable-bitmap',
 '.pdb'=>'chemical/x-pdb',
 '.pdf'=>'application/pdf',
 '.pgm'=>'image/x-portable-graymap',
 '.pgn'=>'application/x-chess-pgn',
 '.png'=>'image/png',
 '.pnm'=>'image/x-portable-anymap',
 '.pot'=>'application/mspowerpoint',
 '.ppm'=>'image/x-portable-pixmap',
 '.pps'=>'application/mspowerpoint',
 '.ppt'=>'application/mspowerpoint',
 '.ppz'=>'application/mspowerpoint',
 '.pre'=>'application/x-freelance',
 '.prt'=>'application/pro_eng',
 '.ps'=>'application/postscript',
 '.qt'=>'video/quicktime',
 '.ra'=>'audio/x-realaudio',
 '.ram'=>'audio/x-pn-realaudio',
 '.ras'=>'image/cmu-raster',
 '.rgb'=>'image/x-rgb',
 '.rm'=>'audio/x-pn-realaudio',
 '.roff'=>'application/x-troff',
 '.rpm'=>'audio/x-pn-realaudio-plugin',
 '.rtf'=>'text/rtf',
 '.rtx'=>'text/richtext',
 '.scm'=>'application/x-lotusscreencam',
 '.set'=>'application/set',
 '.sgm'=>'text/sgml',
 '.sgml'=>'text/sgml',
 '.sh'=>'application/x-sh',
 '.shar'=>'application/x-shar',
 '.silo'=>'model/mesh',
 '.sit'=>'application/x-stuffit',
 '.skd'=>'application/x-koan',
 '.skm'=>'application/x-koan',
 '.skp'=>'application/x-koan',
 '.skt'=>'application/x-koan',
 '.smi'=>'application/smil',
 '.smil'=>'application/smil',
 '.snd'=>'audio/basic',
 '.sol'=>'application/solids',
 '.spl'=>'application/x-futuresplash',
 '.src'=>'application/x-wais-source',
 '.step'=>'application/STEP',
 '.stl'=>'application/SLA',
 '.stp'=>'application/STEP',
 '.sv4cpio'=>'application/x-sv4cpio',
 '.sv4crc'=>'application/x-sv4crc',
 '.swf'=>'application/x-shockwave-flash',
 '.t'=>'application/x-troff',
 '.tar'=>'application/x-tar',
 '.tcl'=>'application/x-tcl',
 '.tex'=>'application/x-tex',
 '.texi'=>'application/x-texinfo',
 '.texinfo'=>'application/x-texinfo',
 '.tif'=>'image/tiff',
 '.tiff'=>'image/tiff',
 '.tr'=>'application/x-troff',
 '.tsi'=>'audio/TSP-audio',
 '.tsp'=>'application/dsptype',
 '.tsv'=>'text/tab-separated-values',
 '.txt'=>'text/plain',
 '.unv'=>'application/i-deas',
 '.ustar'=>'application/x-ustar',
 '.vcd'=>'application/x-cdlink',
 '.vda'=>'application/vda',
 '.viv'=>'video/vnd.vivo',
 '.vivo'=>'video/vnd.vivo',
 '.vrml'=>'model/vrml',
 '.wav'=>'audio/x-wav',
 '.wrl'=>'model/vrml',
 '.xbm'=>'image/x-xbitmap',
 '.xlc'=>'application/vnd.ms-excel',
 '.xll'=>'application/vnd.ms-excel',
 '.xlm'=>'application/vnd.ms-excel',
 '.xls'=>'application/vnd.ms-excel',
 '.xlw'=>'application/vnd.ms-excel',
 '.xml'=>'text/xml',
 '.xpm'=>'image/x-xpixmap',
 '.xwd'=>'image/x-xwindowdump',
 '.xyz'=>'chemical/x-pdb',
 '.zip'=>'application/zip');