function file_get_mimetype

Determines an Internet Media Type or MIME type from a filename.

Parameters

$uri: A string containing the URI, path, or filename.

$mapping: An optional map of extensions to their mimetypes, in the form:

  • 'mimetypes': a list of mimetypes, keyed by an identifier,
  • 'extensions': the mapping itself, an associative array in which the key is the extension (lowercase) and the value is the mimetype identifier. If $mapping is NULL file_mimetype_mapping() is called.

Return value

The internet media type registered for the extension or application/octet-stream for unknown extensions.

See also

file_default_mimetype_mapping()

Related topics

File interface
Common file handling functions.
4 calls to file_get_mimetype()
FileStorageController::create in drupal/core/modules/file/lib/Drupal/file/FileStorageController.php
Overrides Drupal\Core\Entity\DatabaseStorageController::create().
file_save_upload in drupal/core/includes/file.inc
Saves file uploads to a new location.
MimeTypeTest::testFileMimeTypeDetection in drupal/core/modules/system/lib/Drupal/system/Tests/File/MimeTypeTest.php
Test mapping of mimetypes from filenames.
system_theme_settings_submit in drupal/core/modules/system/system.admin.inc
Process system_theme_settings form submissions.

File

drupal/core/includes/file.inc, line 1506
API for handling file uploads and server file management.

Code

function file_get_mimetype($uri, $mapping = NULL) {
  if ($wrapper = file_stream_wrapper_get_instance_by_uri($uri)) {
    return $wrapper
      ->getMimeType($uri, $mapping);
  }
  else {

    // getMimeType() is not implementation specific, so we can directly
    // call it without an instance.
    return LocalStream::getMimeType($uri, $mapping);
  }
}