Php mime type from extension

Get Mime-Type by file extension in PHP

Recently I build a PHP script for dynamically downloading files, and I came across the need to provide the right Mime-Type for each file I set to download. I wrote a function in PHP that gets file extension (with or without the dot prefix) and returns the correct Mime-Type.

This function also returns the general purpose mime-type for missing or unknown file types.

General purpose MIME-TYPE

Use: application / octet — stream

case ‘.arc’ : $mime = ‘application/octet-stream’ ; break ; // Archive document (multiple files embedded)

case ‘.docx’ : $mime = ‘application/vnd.openxmlformats-officedocument.wordprocessingml.document’ ; break ; // Microsoft Word (OpenXML)

case ‘.js’ : $mime = ‘application/javascript’ ; break ; // JavaScript (IANA Specification) (RFC 4329 Section 8.2)

case ‘.mid’ : $mime = ‘audio/midi audio/x-midi’ ; break ; // Musical Instrument Digital Interface (MIDI)

case ‘.midi’ : $mime = ‘audio/midi audio/x-midi’ ; break ; // Musical Instrument Digital Interface (MIDI)

case ‘.odp’ : $mime = ‘application/vnd.oasis.opendocument.presentation’ ; break ; // OpenDocument presentation document

case ‘.ods’ : $mime = ‘application/vnd.oasis.opendocument.spreadsheet’ ; break ; // OpenDocument spreadsheet document

case ‘.odt’ : $mime = ‘application/vnd.oasis.opendocument.text’ ; break ; // OpenDocument text document

case ‘.pptx’ : $mime = ‘application/vnd.openxmlformats-officedocument.presentationml.presentation’ ; break ; // Microsoft PowerPoint (OpenXML)

case ‘.swf’ : $mime = ‘application/x-shockwave-flash’ ; break ; // Small web format (SWF) or Adobe Flash document

case ‘.xlsx’ : $mime = ‘application/vnd.openxmlformats-officedocument.spreadsheetml.sheet’ ; break ; // Microsoft Excel (OpenXML)

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josantonius / php-mime-type Public archive

PHP library to get MIME types from extensions

License

josantonius/php-mime-type

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README.md

PHP library to get MIME types from extensions.

The original concept of my project, linking a single mimetype to a file extension, has been found to be insufficient in accurately reflecting the many-to-one relationships that exist in real-world use-cases. In practice, multiple file extensions often correspond to a single mimetype, rendering my existing design approach suboptimal.

Given these insights, I’ve decided to archive this repository. I recommend those interested to look at the approach taken by the repository patrickmccallum/mimetype-io. This project adopts a more nuanced perspective, effectively managing mimetypes by acknowledging the possibility of multiple extensions corresponding to a single mimetype. I believe this is a more promising approach for managing mimetypes moving forward.

The preferred way to install this extension is through Composer.

To install PHP MimeType library, simply:

composer require josantonius/mime-type

The previous command will only install the necessary files, if you prefer to download the entire source code you can use:

composer require josantonius/mime-type --prefer-source

You can also clone the complete repository with Git:

git clone https://github.com/josantonius/php-mime-type.git

Get array with all MIME types:

public function all(): array;

Get file extension from MIME type:

public function getExtension(string $mimeType): string|null;

Get MIME type from file extension:

public function getMime(string $extension): string|null;

Get array with all MIME types:

public static function all(): array;

Get file extension from MIME type:

public static function getExtension(string $mimeType): string|null;

Get MIME type from file extension:

public static function getMime(string $extension): string|null;

Example of use for this library:

Get array with all MIME types

use Josantonius\MimeType\MimeType; $mimeType = new MimeType(); $mimeType->all();

use Josantonius\MimeType\MimeTypeCollection; MimeTypeCollection::all();

[ [".123"]=> "application/vnd.lotus-1-2-3" [".3dml"]=> "text/vnd.in3d.3dml" [".3g2"]=> "video/3gpp2" [".3gp"]=> "video/3gpp" [".7z"]=> "application/x-7z-compressed" [".aab"]=> "application/x-authorware-bin" [".aac"]=> "audio/x-aac" [".aam"]=> "application/x-authorware-map" [".aas"]=> "application/x-authorware-seg" [".abw"]=> "application/x-abiword" (. ) ]

Get file extension from MIME type

use Josantonius\MimeType\MimeType; $mimeType = new MimeType(); $mimeType->getExtension('text/html'); // .html

use Josantonius\MimeType\MimeTypeCollection; MimeTypeCollection::getExtension('application/zip'); // .zip

Get MIME type from file extension

use Josantonius\MimeType\MimeType; $mimeType = new MimeType(); $mimeType->getMime('.tar'); // application/x-tar // The dot can be omitted: $mimeType->getMime('mp4'); // video/mp4

use Josantonius\MimeType\MimeTypeCollection; MimeTypeCollection::getMime('.json'); // application/json

To run tests you just need composer and to execute the following:

git clone https://github.com/josantonius/php-mime-type.git

Run code standard tests with PHPCS:

Run PHP Mess Detector tests to detect inconsistencies in code style:

• Add new feature
• Improve tests
• Improve documentation
• Improve English translation in the README file
• Refactor code for disabled code style rules (see phpmd.xml and phpcs.xml)

Detailed changes for each release are documented in the release notes.

Please make sure to read the Contributing Guide, before making a pull request, start a discussion or report a issue.

If this project helps you to reduce your development time, you can sponsor me to support my open source work 😊

This repository is licensed under the MIT License.

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PHP library to get MIME types from extensions

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PHP package for converting file extensions to MIME types and vice versa.

License

ralouphie/mimey

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readme.md

PHP package for converting file extensions to MIME types and vice versa.

This package uses httpd’s mime.types to generate a mapping of file extension to MIME type and the other way around.

The mime.types file is parsed by bin/generate.php and converted into an optimized PHP array in mime.types.php which is then wrapped by helper class \Mimey\MimeTypes .

$mimes = new \Mimey\MimeTypes; // Convert extension to MIME type: $mimes->getMimeType('json'); // application/json // Convert MIME type to extension: $mimes->getExtension('application/json'); // json

It’s rare, but some extensions have multiple MIME types:

// Get all MIME types for an extension: $mimes->getAllMimeTypes('wmz'); // array('application/x-ms-wmz', 'application/x-msmetafile')

However, there are many MIME types that have multiple extensions:

// Get all extensions for a MIME type: $mimes->getAllExtensions('image/jpeg'); // array('jpeg', 'jpg', 'jpe')

You can add custom conversions by changing the mapping that is given to MimeTypes .

There is a MimeMappingBuilder that can help with this:

// Create a builder using the built-in conversions as the basis. $builder = \Mimey\MimeMappingBuilder::create(); // Add a conversion. This conversion will take precedence over existing ones. $builder->add('custom/mime-type', 'myextension'); $mimes = new \Mimey\MimeTypes($builder->getMapping()); $mimes->getMimeType('myextension'); // custom/mime-type $mimes->getExtension('custom/mime-type'); // myextension

You can add as many conversions as you would like to the builder:

$builder->add('custom/mime-type', 'myextension'); $builder->add('foo/bar', 'foobar'); $builder->add('foo/bar', 'fbar'); $builder->add('baz/qux', 'qux'); $builder->add('cat/qux', 'qux'); ...

Optimized Custom Conversion Loading

You can optimize the loading of custom conversions by saving all conversions to a compiled PHP file as part of a build step.

// Add a bunch of custom conversions. $builder->add(. ); $builder->add(. ); $builder->add(. ); ... // Save the conversions to a cached file. $builder->save($cache_file_path);

The file can then be loaded to avoid overhead of repeated $builder->add(. ) calls:

// Load the conversions from a cached file. $builder = \Mimey\MimeMappingBuilder::load($cache_file_path); $mimes = new \Mimey\MimeTypes($builder->getMapping());

composer require ralouphie/mimey 

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PHP package for converting file extensions to MIME types and vice versa.

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