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Convert MIME type to file Extension PHP

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php

I've been looking around in the PHP documentation for some time, but I found no way to convert a MIME type extension to a file type extension.

image_type_to_extension

Seems to work if the file is an image. In my particular case, the mime types are not for images, they are for font types: 'otf, ttf'.

like image 417
TaylorMac Avatar asked May 12 '13 19:05

TaylorMac


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3 Answers

Just gonna slap this up here with full credit due to Oliver Lillie from this comment:

function mime2ext($mime) {
    $mime_map = [
        'video/3gpp2'                                                               => '3g2',
        'video/3gp'                                                                 => '3gp',
        'video/3gpp'                                                                => '3gp',
        'application/x-compressed'                                                  => '7zip',
        'audio/x-acc'                                                               => 'aac',
        'audio/ac3'                                                                 => 'ac3',
        'application/postscript'                                                    => 'ai',
        'audio/x-aiff'                                                              => 'aif',
        'audio/aiff'                                                                => 'aif',
        'audio/x-au'                                                                => 'au',
        'video/x-msvideo'                                                           => 'avi',
        'video/msvideo'                                                             => 'avi',
        'video/avi'                                                                 => 'avi',
        'application/x-troff-msvideo'                                               => 'avi',
        'application/macbinary'                                                     => 'bin',
        'application/mac-binary'                                                    => 'bin',
        'application/x-binary'                                                      => 'bin',
        'application/x-macbinary'                                                   => 'bin',
        'image/bmp'                                                                 => 'bmp',
        'image/x-bmp'                                                               => 'bmp',
        'image/x-bitmap'                                                            => 'bmp',
        'image/x-xbitmap'                                                           => 'bmp',
        'image/x-win-bitmap'                                                        => 'bmp',
        'image/x-windows-bmp'                                                       => 'bmp',
        'image/ms-bmp'                                                              => 'bmp',
        'image/x-ms-bmp'                                                            => 'bmp',
        'application/bmp'                                                           => 'bmp',
        'application/x-bmp'                                                         => 'bmp',
        'application/x-win-bitmap'                                                  => 'bmp',
        'application/cdr'                                                           => 'cdr',
        'application/coreldraw'                                                     => 'cdr',
        'application/x-cdr'                                                         => 'cdr',
        'application/x-coreldraw'                                                   => 'cdr',
        'image/cdr'                                                                 => 'cdr',
        'image/x-cdr'                                                               => 'cdr',
        'zz-application/zz-winassoc-cdr'                                            => 'cdr',
        'application/mac-compactpro'                                                => 'cpt',
        'application/pkix-crl'                                                      => 'crl',
        'application/pkcs-crl'                                                      => 'crl',
        'application/x-x509-ca-cert'                                                => 'crt',
        'application/pkix-cert'                                                     => 'crt',
        'text/css'                                                                  => 'css',
        'text/x-comma-separated-values'                                             => 'csv',
        'text/comma-separated-values'                                               => 'csv',
        'application/vnd.msexcel'                                                   => 'csv',
        'application/x-director'                                                    => 'dcr',
        'application/vnd.openxmlformats-officedocument.wordprocessingml.document'   => 'docx',
        'application/x-dvi'                                                         => 'dvi',
        'message/rfc822'                                                            => 'eml',
        'application/x-msdownload'                                                  => 'exe',
        'video/x-f4v'                                                               => 'f4v',
        'audio/x-flac'                                                              => 'flac',
        'video/x-flv'                                                               => 'flv',
        'image/gif'                                                                 => 'gif',
        'application/gpg-keys'                                                      => 'gpg',
        'application/x-gtar'                                                        => 'gtar',
        'application/x-gzip'                                                        => 'gzip',
        'application/mac-binhex40'                                                  => 'hqx',
        'application/mac-binhex'                                                    => 'hqx',
        'application/x-binhex40'                                                    => 'hqx',
        'application/x-mac-binhex40'                                                => 'hqx',
        'text/html'                                                                 => 'html',
        'image/x-icon'                                                              => 'ico',
        'image/x-ico'                                                               => 'ico',
        'image/vnd.microsoft.icon'                                                  => 'ico',
        'text/calendar'                                                             => 'ics',
        'application/java-archive'                                                  => 'jar',
        'application/x-java-application'                                            => 'jar',
        'application/x-jar'                                                         => 'jar',
        'image/jp2'                                                                 => 'jp2',
        'video/mj2'                                                                 => 'jp2',
        'image/jpx'                                                                 => 'jp2',
        'image/jpm'                                                                 => 'jp2',
        'image/jpeg'                                                                => 'jpeg',
        'image/pjpeg'                                                               => 'jpeg',
        'application/x-javascript'                                                  => 'js',
        'application/json'                                                          => 'json',
        'text/json'                                                                 => 'json',
        'application/vnd.google-earth.kml+xml'                                      => 'kml',
        'application/vnd.google-earth.kmz'                                          => 'kmz',
        'text/x-log'                                                                => 'log',
        'audio/x-m4a'                                                               => 'm4a',
        'audio/mp4'                                                                 => 'm4a',
        'application/vnd.mpegurl'                                                   => 'm4u',
        'audio/midi'                                                                => 'mid',
        'application/vnd.mif'                                                       => 'mif',
        'video/quicktime'                                                           => 'mov',
        'video/x-sgi-movie'                                                         => 'movie',
        'audio/mpeg'                                                                => 'mp3',
        'audio/mpg'                                                                 => 'mp3',
        'audio/mpeg3'                                                               => 'mp3',
        'audio/mp3'                                                                 => 'mp3',
        'video/mp4'                                                                 => 'mp4',
        'video/mpeg'                                                                => 'mpeg',
        'application/oda'                                                           => 'oda',
        'audio/ogg'                                                                 => 'ogg',
        'video/ogg'                                                                 => 'ogg',
        'application/ogg'                                                           => 'ogg',
        'font/otf'                                                                  => 'otf',
        'application/x-pkcs10'                                                      => 'p10',
        'application/pkcs10'                                                        => 'p10',
        'application/x-pkcs12'                                                      => 'p12',
        'application/x-pkcs7-signature'                                             => 'p7a',
        'application/pkcs7-mime'                                                    => 'p7c',
        'application/x-pkcs7-mime'                                                  => 'p7c',
        'application/x-pkcs7-certreqresp'                                           => 'p7r',
        'application/pkcs7-signature'                                               => 'p7s',
        'application/pdf'                                                           => 'pdf',
        'application/octet-stream'                                                  => 'pdf',
        'application/x-x509-user-cert'                                              => 'pem',
        'application/x-pem-file'                                                    => 'pem',
        'application/pgp'                                                           => 'pgp',
        'application/x-httpd-php'                                                   => 'php',
        'application/php'                                                           => 'php',
        'application/x-php'                                                         => 'php',
        'text/php'                                                                  => 'php',
        'text/x-php'                                                                => 'php',
        'application/x-httpd-php-source'                                            => 'php',
        'image/png'                                                                 => 'png',
        'image/x-png'                                                               => 'png',
        'application/powerpoint'                                                    => 'ppt',
        'application/vnd.ms-powerpoint'                                             => 'ppt',
        'application/vnd.ms-office'                                                 => 'ppt',
        'application/msword'                                                        => 'doc',
        'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'pptx',
        'application/x-photoshop'                                                   => 'psd',
        'image/vnd.adobe.photoshop'                                                 => 'psd',
        'audio/x-realaudio'                                                         => 'ra',
        'audio/x-pn-realaudio'                                                      => 'ram',
        'application/x-rar'                                                         => 'rar',
        'application/rar'                                                           => 'rar',
        'application/x-rar-compressed'                                              => 'rar',
        'audio/x-pn-realaudio-plugin'                                               => 'rpm',
        'application/x-pkcs7'                                                       => 'rsa',
        'text/rtf'                                                                  => 'rtf',
        'text/richtext'                                                             => 'rtx',
        'video/vnd.rn-realvideo'                                                    => 'rv',
        'application/x-stuffit'                                                     => 'sit',
        'application/smil'                                                          => 'smil',
        'text/srt'                                                                  => 'srt',
        'image/svg+xml'                                                             => 'svg',
        'application/x-shockwave-flash'                                             => 'swf',
        'application/x-tar'                                                         => 'tar',
        'application/x-gzip-compressed'                                             => 'tgz',
        'image/tiff'                                                                => 'tiff',
        'font/ttf'                                                                  => 'ttf',
        'text/plain'                                                                => 'txt',
        'text/x-vcard'                                                              => 'vcf',
        'application/videolan'                                                      => 'vlc',
        'text/vtt'                                                                  => 'vtt',
        'audio/x-wav'                                                               => 'wav',
        'audio/wave'                                                                => 'wav',
        'audio/wav'                                                                 => 'wav',
        'application/wbxml'                                                         => 'wbxml',
        'video/webm'                                                                => 'webm',
        'image/webp'                                                                => 'webp',
        'audio/x-ms-wma'                                                            => 'wma',
        'application/wmlc'                                                          => 'wmlc',
        'video/x-ms-wmv'                                                            => 'wmv',
        'video/x-ms-asf'                                                            => 'wmv',
        'font/woff'                                                                 => 'woff',
        'font/woff2'                                                                => 'woff2',
        'application/xhtml+xml'                                                     => 'xhtml',
        'application/excel'                                                         => 'xl',
        'application/msexcel'                                                       => 'xls',
        'application/x-msexcel'                                                     => 'xls',
        'application/x-ms-excel'                                                    => 'xls',
        'application/x-excel'                                                       => 'xls',
        'application/x-dos_ms_excel'                                                => 'xls',
        'application/xls'                                                           => 'xls',
        'application/x-xls'                                                         => 'xls',
        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'         => 'xlsx',
        'application/vnd.ms-excel'                                                  => 'xlsx',
        'application/xml'                                                           => 'xml',
        'text/xml'                                                                  => 'xml',
        'text/xsl'                                                                  => 'xsl',
        'application/xspf+xml'                                                      => 'xspf',
        'application/x-compress'                                                    => 'z',
        'application/x-zip'                                                         => 'zip',
        'application/zip'                                                           => 'zip',
        'application/x-zip-compressed'                                              => 'zip',
        'application/s-compressed'                                                  => 'zip',
        'multipart/x-zip'                                                           => 'zip',
        'text/x-scriptzsh'                                                          => 'zsh',
    ];

    return isset($mime_map[$mime]) ? $mime_map[$mime] : false;
}
like image 97
Eaten by a Grue Avatar answered Oct 06 '22 14:10

Eaten by a Grue


You could use something like:

function getExtension ($mime_type){

    $extensions = array('image/jpeg' => 'jpeg',
                        'text/xml' => 'xml'
                       );

    // Add as many other Mime Types / File Extensions as you like

    return $extensions[$mime_type];

}

Note: not every MIME type has a fixed file extension. Also, MIME types like application/octet-stream can refer to multiple file extensions.

like image 23
ajtrichards Avatar answered Oct 06 '22 15:10

ajtrichards


First get $mime type for an image, then explode the string by '/' which will return an array.

$extension = explode('/', $mime )[1];
like image 33
Md. Zubaer Ahammed Avatar answered Oct 06 '22 14:10

Md. Zubaer Ahammed