Php accurately obtains the object MIME type

Php accurately obtains the object MIME type

This example describes how php can accurately obtain the object MIME type. Share it with you for your reference. The specific implementation method is as follows:

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Signature <? Php $ Mime = array ( // Applications 'Ai' => 'application/postscript ', 'Eps '=> 'application/postscript ', 'Exe '=> 'application/octet-stream ', 'Doc' => 'application/vnd. ms-word ', 'Xls '=> 'application/vnd. ms-excel ', 'Ppt '=> 'application/vnd. ms-powerpoint ', 'Pps '=> 'application/vnd. ms-powerpoint ', 'Pdf '=> 'application/pdf ', 'Xml' => 'application/xml ', 'Odt' => 'application/vnd. oasis. opendocument. text ', 'Swf '=> 'application/x-shockwave-flash ', // Archives 'Gz '=> 'application/x-gzip ', 'Tgz' => 'application/x-gzip ', 'Yz' => 'application/x-bzip2 ', 'Bz2' => 'application/x-bzip2 ', 'Tbz' => 'application/x-bzip2 ', 'Zip' => 'application/zip ', 'Rar '=> 'application/x-rar ', 'Tar '=> 'application/x-tar ', '7z' => 'application/x-7z-compressed ', // Texts 'Txt '=> 'text/plain ', 'Php' => 'text/x-php ', 'Html' => 'text/html ', 'Htm '=> 'text/html ', 'Js' => 'text/javascript ', 'Css '=> 'text/css ', 'Rtf '=> 'text/rtf ', 'Rtfs' => 'text/rtfs ', 'Py' => 'text/x-python ', 'Java' => 'text/x-java-source ', 'Rb' => 'text/x-ruby ', 'Sh' => 'text/x-shellscript ', 'Pl '=> 'text/x-perl ', 'SQL' => 'text/x-SQL ', // Images 'Bmp '=> 'image/x-ms-bmp ', 'Jpg '=> 'image/jpeg ', 'Jpeg '=> 'image/jpeg ', 'Gif' => 'image/gif ', 'Png '=> 'image/png ', 'Tif '=> 'image/tiff ', 'Tiff '=> 'image/tiff ', 'Tga '=> 'image/x-targa ', 'Psd '=> 'image/vnd. adobe. photoshop ', // Audio 'Mp3' => 'audio/mpeg ', 'Mid '=> 'audio/midi ', 'Ogc' => 'audio/ogc ', 'Mp4a '=> 'audio/mp4 ', 'Wav '=> 'audio/wav ', 'Wma' => 'audio/x-ms-wma ', // Video 'Av' => 'video/x-msvideo ', 'Dv' => 'video/x-dv ', 'Mp4' => 'video/mp4 ', 'Mpeg '=> 'video/mpeg ', 'Mpg' => 'video/mpeg ', 'Mov' => 'video/quicktime ', 'Wm '=> 'video/x-ms-wmv ', 'Flv' => 'video/x-flv ', 'Mkv '=> 'video/x-matroska' ); Function _ getMimeDetect (){ If (class_exists ('finfo ')){ Return 'finfo '; } Else if (function_exists ('mime _ content_type ')){ Return 'mime _ content_type '; } Else if (function_exists ('exec ')){ $ Result = exec ('file-ib '. escapeshellarg (_ file __)); If (0 = strpos ($ result, 'text/x-php') OR 0 = strpos ($ result, 'text/x-c ++ ')) { Return 'linux '; } $ Result = exec ('file-Ib '. escapeshellarg (_ file __)); If (0 = strpos ($ result, 'text/x-php') OR 0 = strpos ($ result, 'text/x-c ++ ')) { Return 'bsd '; } } Return 'internal '; } Function _ getMimeType ($ path ){ Global $ mime; $ Fmime = _ getMimeDetect (); Switch ($ fmime ){ Case 'finfo ': $ Finfo = finfo_open (FILEINFO_MIME ); If ($ finfo) $ Type = @ finfo_file ($ finfo, $ path ); Break; Case 'mime _ content_type ': $ Type = mime_content_type ($ path ); Break; Case 'linux ': $ Type = exec ('file-ib '. escapeshellarg ($ path )); Break; Case 'bsd ': $ Type = exec ('file-Ib '. escapeshellarg ($ path )); Break; Default: $ Pinfo = pathinfo ($ path ); $ Ext = isset ($ pinfo ['extension'])? Strtolower ($ pinfo ['extension']): ''; $ Type = isset ($ mime [$ ext])? $ Mime [$ ext]: 'unkown '; Break; } $ Type = explode (';', $ type ); // This section needs to be added, because if the mime_content_type function is used to obtain a nonexistent $ path, 'application/octet-stream' will be returned' If ($ fmime! = 'Internal' AND $ type [0] = 'application/octet-stream '){ $ Pinfo = pathinfo ($ path ); $ Ext = isset ($ pinfo ['extension'])? Strtolower ($ pinfo ['extension']): ''; If (! Empty ($ ext) AND! Empty ($ mime [$ ext]) { $ Type [0] = $ mime [$ ext]; } } Return $ type [0]; } $ Path = '1.txt '; // The current cursor does not exist in 1.txt Var_dump (_ getMimeType ($ path )); /* End of php */

I hope this article will help you with php programming.