Programmatically saving a file in Drupal 8, 9 & 10

By hari, 29 October, 2022

Drupal with Service

This would be suitable for .module and .theme file

use Drupal\Core\File\FileSystemInterface; // on top
use Drupal\file\Entity\File; // on top
function SaveFile($data, $destination) {
 if (!\Drupal::service('file_system')->prepareDirectory($destination, FileSystemInterface::CREATE_DIRECTORY)) {
   return FALSE;
 } 
 \Drupal::service('file_system')->saveData($data, $destination, FileSystemInterface::EXISTS_REPLACE);
 $new_file = File::create(['uri' => $file->uri]);
 $new_file->setOwnerId(1);
 $new_file->setPermanent();
 $new_file->save();
 return $new_file;
}

Object-oriented way

use Drupal\Core\File\FileSystemInterface; // on top
use Drupal\file\Entity\File; // on top

Class CustomClass {

  /**
   * @var \Drupal\Core\File\FileSystemInterface
   */
  protected $fileSystem;

  /**
   * @param \Drupal\Core\File\FileSystemInterface $file_system
   *   The file system manager.
   */
  public function __construct(FileSystemInterface $file_system) {
    $this->fileSystem = $file_system;
  }

  public function SaveFile($data, $destination) {
    if (!$this->fileSystem->prepareDirectory($destination, FileSystemInterface::CREATE_DIRECTORY)) {
      return FALSE;
    }

    $this->fileSystem->saveData($data, $destination, FileSystemInterface::EXISTS_REPLACE);
    $new_file = File::create(['uri' => $file->uri]);
    $new_file->setOwnerId(1);
    $new_file->setPermanent();
    $new_file->save();

    return $new_file;
  }
}

Programmatically saving a file in Drupal 8, 9 & 10

Drupal with Service

Object-oriented way

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