将 MIME 类型转换为文件扩展名 PHP
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16511021/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间：2020-08-25 11:15:48 来源:igfitidea点击:
Convert MIME type to file Extension PHP
提问by TaylorMac
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.
我已经在 PHP 文档中环顾了一段时间，但我发现无法将 MIME 类型扩展名转换为文件类型扩展名。
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'.
如果文件是图像，则似乎有效。在我的特殊情况下，mime 类型不是用于图像，而是用于字体类型：'otf, ttf'。
回答by ajtrichards
You could use something like:
你可以使用类似的东西：
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-streamcan refer to multiple file extensions.
注意：并非每种 MIME 类型都有固定的文件扩展名。此外，MIME 类型 likeapplication/octet-stream可以指多个文件扩展名。
回答by billynoah
Just gonna slap this up here with full credit due to Oliver Lilliefrom this comment:
由于Oliver Lillie来自此评论，我只想在这里全额赞扬：
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' => 'ppt',
'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;
}
回答by Md. Zubaer Ahammed
First get $mime type for an image, then explode the string by '/' which will return an array.
首先获取图像的 $mime 类型，然后通过 '/' 分解字符串，这将返回一个数组。
$extension = explode('/', $mime )[1];
回答by borodatych
Found on open spaces github gist:
在开放空间 github gist上找到：
function mime2ext($mime)
{
$all_mimes = '{"png":["image\/png","image\/x-png"],"bmp":["image\/bmp","image\/x-bmp","image\/x-bitmap","image\/x-xbitmap","image\/x-win-bitmap","image\/x-windows-bmp","image\/ms-bmp","image\/x-ms-bmp","application\/bmp","application\/x-bmp","application\/x-win-bitmap"],"gif":["image\/gif"],"jpeg":["image\/jpeg","image\/pjpeg"],"xspf":["application\/xspf+xml"],"vlc":["application\/videolan"],"wmv":["video\/x-ms-wmv","video\/x-ms-asf"],"au":["audio\/x-au"],"ac3":["audio\/ac3"],"flac":["audio\/x-flac"],"ogg":["audio\/ogg","video\/ogg","application\/ogg"],"kmz":["application\/vnd.google-earth.kmz"],"kml":["application\/vnd.google-earth.kml+xml"],"rtx":["text\/richtext"],"rtf":["text\/rtf"],"jar":["application\/java-archive","application\/x-java-application","application\/x-jar"],"zip":["application\/x-zip","application\/zip","application\/x-zip-compressed","application\/s-compressed","multipart\/x-zip"],"7zip":["application\/x-compressed"],"xml":["application\/xml","text\/xml"],"svg":["image\/svg+xml"],"3g2":["video\/3gpp2"],"3gp":["video\/3gp","video\/3gpp"],"mp4":["video\/mp4"],"m4a":["audio\/x-m4a"],"f4v":["video\/x-f4v"],"flv":["video\/x-flv"],"webm":["video\/webm"],"aac":["audio\/x-acc"],"m4u":["application\/vnd.mpegurl"],"pdf":["application\/pdf","application\/octet-stream"],"pptx":["application\/vnd.openxmlformats-officedocument.presentationml.presentation"],"ppt":["application\/powerpoint","application\/vnd.ms-powerpoint","application\/vnd.ms-office","application\/msword"],"docx":["application\/vnd.openxmlformats-officedocument.wordprocessingml.document"],"xlsx":["application\/vnd.openxmlformats-officedocument.spreadsheetml.sheet","application\/vnd.ms-excel"],"xl":["application\/excel"],"xls":["application\/msexcel","application\/x-msexcel","application\/x-ms-excel","application\/x-excel","application\/x-dos_ms_excel","application\/xls","application\/x-xls"],"xsl":["text\/xsl"],"mpeg":["video\/mpeg"],"mov":["video\/quicktime"],"avi":["video\/x-msvideo","video\/msvideo","video\/avi","application\/x-troff-msvideo"],"movie":["video\/x-sgi-movie"],"log":["text\/x-log"],"txt":["text\/plain"],"css":["text\/css"],"html":["text\/html"],"wav":["audio\/x-wav","audio\/wave","audio\/wav"],"xhtml":["application\/xhtml+xml"],"tar":["application\/x-tar"],"tgz":["application\/x-gzip-compressed"],"psd":["application\/x-photoshop","image\/vnd.adobe.photoshop"],"exe":["application\/x-msdownload"],"js":["application\/x-javascript"],"mp3":["audio\/mpeg","audio\/mpg","audio\/mpeg3","audio\/mp3"],"rar":["application\/x-rar","application\/rar","application\/x-rar-compressed"],"gzip":["application\/x-gzip"],"hqx":["application\/mac-binhex40","application\/mac-binhex","application\/x-binhex40","application\/x-mac-binhex40"],"cpt":["application\/mac-compactpro"],"bin":["application\/macbinary","application\/mac-binary","application\/x-binary","application\/x-macbinary"],"oda":["application\/oda"],"ai":["application\/postscript"],"smil":["application\/smil"],"mif":["application\/vnd.mif"],"wbxml":["application\/wbxml"],"wmlc":["application\/wmlc"],"dcr":["application\/x-director"],"dvi":["application\/x-dvi"],"gtar":["application\/x-gtar"],"php":["application\/x-httpd-php","application\/php","application\/x-php","text\/php","text\/x-php","application\/x-httpd-php-source"],"swf":["application\/x-shockwave-flash"],"sit":["application\/x-stuffit"],"z":["application\/x-compress"],"mid":["audio\/midi"],"aif":["audio\/x-aiff","audio\/aiff"],"ram":["audio\/x-pn-realaudio"],"rpm":["audio\/x-pn-realaudio-plugin"],"ra":["audio\/x-realaudio"],"rv":["video\/vnd.rn-realvideo"],"jp2":["image\/jp2","video\/mj2","image\/jpx","image\/jpm"],"tiff":["image\/tiff"],"eml":["message\/rfc822"],"pem":["application\/x-x509-user-cert","application\/x-pem-file"],"p10":["application\/x-pkcs10","application\/pkcs10"],"p12":["application\/x-pkcs12"],"p7a":["application\/x-pkcs7-signature"],"p7c":["application\/pkcs7-mime","application\/x-pkcs7-mime"],"p7r":["application\/x-pkcs7-certreqresp"],"p7s":["application\/pkcs7-signature"],"crt":["application\/x-x509-ca-cert","application\/pkix-cert"],"crl":["application\/pkix-crl","application\/pkcs-crl"],"pgp":["application\/pgp"],"gpg":["application\/gpg-keys"],"rsa":["application\/x-pkcs7"],"ics":["text\/calendar"],"zsh":["text\/x-scriptzsh"],"cdr":["application\/cdr","application\/coreldraw","application\/x-cdr","application\/x-coreldraw","image\/cdr","image\/x-cdr","zz-application\/zz-winassoc-cdr"],"wma":["audio\/x-ms-wma"],"vcf":["text\/x-vcard"],"srt":["text\/srt"],"vtt":["text\/vtt"],"ico":["image\/x-icon","image\/x-ico","image\/vnd.microsoft.icon"],"csv":["text\/x-comma-separated-values","text\/comma-separated-values","application\/vnd.msexcel"],"json":["application\/json","text\/json"]}';
$all_mimes = json_decode($all_mimes,true);
foreach( $all_mimes as $key => $value )
if( array_search($mime,$value) !== false ) return $key;
return false;
}
Also converted the list to an array, for convenient adding of mime types - gist
还将列表转换为数组，以便于添加 mime 类型 - gist
回答by borodatych
Not sure if this one will always return the right file extension, but you can use pathinfo()to get the extension from file name, instead of converting mime_types.
不确定这是否总是会返回正确的文件扩展名，但您可以使用pathinfo()从文件名中获取扩展名，而不是转换 mime_types。
$Extension = pathinfo(basename($_FILES['image']['name']), PATHINFO_EXTENSION);
echo $Extension;
