public function UploadedFile::guessClientExtension

Returns the extension based on the client mime type.

If the mime type is unknown, returns null.

This method uses the mime type as guessed by getClientMimeType() to guess the file extension. As such, the extension returned by this method cannot be trusted.

For a trusted extension, use guessExtension() instead (which guesses the extension based on the guessed mime type for the file).

Return value

string|null The guessed extension or null if it cannot be guessed

See also

guessExtension()

getClientMimeType()

File

drupal/core/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/File/UploadedFile.php, line 172

Class

UploadedFile

A file uploaded through a form.

Namespace

Code

public function guessClientExtension() {
  $type = $this
    ->getClientMimeType();
  $guesser = ExtensionGuesser::getInstance();
  return $guesser
    ->guess($type);
}