function FileSystem::getDestinationFilename

File

core/lib/Drupal/Core/File/FileSystem.php, line 554

Class

FileSystem

Provides helpers to operate on files and stream wrappers.

Namespace

Code

public function getDestinationFilename($destination, $replace) {
  $basename = $this->basename($destination);
  if (!Unicode::validateUtf8($basename)) {
    throw new FileException(sprintf("Invalid filename '%s'", $basename));
  }
  if (file_exists($destination)) {
    switch ($replace) {
      case FileSystemInterface::EXISTS_REPLACE:
        // Do nothing here, we want to overwrite the existing file.
        break;

      case FileSystemInterface::EXISTS_RENAME:
        $directory = $this->dirname($destination);
        $destination = $this->createFilename($basename, $directory);
        break;

      case FileSystemInterface::EXISTS_ERROR:
        // Error reporting handled by calling function.
        return FALSE;
    }
  }
  return $destination;
}