Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/File/FileSystem.php \Drupal\Core\File\FileSystem::copy()
2. 8.9.x core/lib/Drupal/Core/File/FileSystem.php \Drupal\Core\File\FileSystem::copy()
3. 11.x core/lib/Drupal/Core/File/FileSystem.php \Drupal\Core\File\FileSystem::copy()

Copies a file to a new location without invoking the file API.

This is a powerful function that in many ways performs like an advanced version of copy().

• Checks if $source and $destination are valid and readable/writable.
• If file already exists in $destination either the call will error out, replace the file or rename the file based on the $fileExists parameter.
• If the $source and $destination are equal, the behavior depends on the $fileExists parameter.
• Provides a fallback using realpaths if the move fails using stream wrappers. This can occur because PHP's copy() function does not properly support streams if open_basedir is enabled. See https://bugs.php.net/bug.php?id=60456

Parameters

string $source: A string specifying the filepath or URI of the source file.

string $destination: A URI containing the destination that $source should be copied to. The URI may be a bare filepath (without a scheme).

\Drupal\Core\File\FileExists|int $fileExists: The behavior when the destination file already exists.

Return value

string The path to the new file.

Overrides FileSystemInterface::copy

File

core/lib/Drupal/Core/File/FileSystem.php, line 290

Class

FileSystem

Provides helpers to operate on files and stream wrappers.

Namespace

Drupal\Core\File

Code

public function copy($source, $destination, $fileExists = FileExists::Rename) {
  if (!$fileExists instanceof FileExists) {
    // @phpstan-ignore-next-line
    $fileExists = FileExists::fromLegacyInt($fileExists, __METHOD__);
  }
  $this->prepareDestination($source, $destination, $fileExists);
  if (!@copy($source, $destination)) {
    // If the copy failed and realpaths exist, retry the operation using them
    // instead.
    $real_source = $this->realpath($source) ?: $source;
    $real_destination = $this->realpath($destination) ?: $destination;
    if ($real_source === FALSE || $real_destination === FALSE || !@copy($real_source, $real_destination)) {
      throw new FileWriteException("The specified file '{$source}' could not be copied to '{$destination}'.");
    }
  }
  // Set the permissions on the new file.
  $this->chmod($destination);
  return $destination;
}

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