public function File::getDataUri in Helper 8

Converts a file URL into a data URI.

Parameters

string $uri: The file URI.

bool $base_64_encode: TRUE to return the data URI as base-64 encoded content.

string|null $mimetype: The optional mime type to provide for the data URI. If not provided the mime type guesser service will be used.

Return value

string The image data URI for use in a src attribute.

Throws

\Symfony\Component\HttpFoundation\File\Exception\AccessDeniedException If the file cannot be read.

File

src/File.php, line 100

Class

File

Provides helpers for working with files.

Namespace

Drupal\helper

Code

public function getDataUri($uri, $base_64_encode = TRUE, $mimetype = NULL) {
  if (!isset($mimetype)) {
    $mimetype = $this->mimeTypeGuesser
      ->guess($uri);
  }
  $contents = file_get_contents($uri);
  if ($contents === FALSE) {
    throw new AccessDeniedException($uri);
  }
  if ($base_64_encode) {
    $contents = base64_encode($contents);
  }
  return 'data:' . $mimetype . ($base_64_encode ? ';base64' : '') . ',' . $contents;
}