League Mime Type Detection
This package supplies a generic mime-type detection interface with a
finfo based implementation.
Usage
composer require league/mime-type-detectionDetectors
Finfo with extension fallback:
$detector = new League\MimeTypeDetection\FinfoMimeTypeDetector();
// Detect by contents, fall back to detection by extension.
$mimeType = $detector->detectMimeType('some/path.php', 'string contents');
// Detect by contents only, no extension fallback.
$mimeType = $detector->detectMimeTypeFromBuffer('string contents');
// Detect by actual file, no extension fallback.
$mimeType = $detector->detectMimeTypeFromFile('existing/path.php');
// Only detect by extension
$mimeType = $detector->detectMimeTypeFromPath('any/path.php');
// Constructor options
$detector = new League\MimeTypeDetection\FinfoMimeTypeDetector(
$pathToMimeDatabase, // Custom mime database location, default: ''
$customExtensionMap, // Custom extension fallback mapp, default: null
$bufferSampleSize // Buffer size limit, used to take a sample (substr) from the input buffer to reduce memory consumption.
);Extension only:
$detector = new League\MimeTypeDetection\ExtensionMimeTypeDetector();
// Only detect by extension
$mimeType = $detector->detectMimeType('some/path.php', 'string contents');
// Always returns null
$mimeType = $detector->detectMimeTypeFromBuffer('string contents');
// Only detect by extension
$mimeType = $detector->detectMimeTypeFromFile('existing/path.php');
// Only detect by extension
$mimeType = $detector->detectMimeTypeFromPath('any/path.php');Extension mime-type lookup
As a fallback for finfo based lookup, an extension map
is used to determine the mime-type. There is an advised implementation
shipped, which is generated from information collected by the npm
package mime-db.
Provided extension maps
Generated:
$map = new League\MimeTypeDetection\GeneratedExtensionToMimeTypeMap();
// string mime-type or NULL
$mimeType = $map->lookupMimeType('png');Overriding decorator
$innerMap = new League\MimeTypeDetection\GeneratedExtensionToMimeTypeMap();
$map = new League\MimeTypeDetection\OverridingExtensionToMimeTypeMap($innerMap, ['png' => 'custom/mimetype']);
// string "custom/mimetype"
$mimeType = $map->lookupMimeType('png');Empty:
$map = new League\MimeTypeDetection\EmptyExtensionToMimeTypeMap();
// Always returns NULL
$mimeType = $map->lookupMimeType('png');