Code

Example:



  $con = Drupal\Core\Database\Database::getConnection();

  $start_value = 100000;

  $query = "ALTER TABLE {the_table} AUTO_INCREMENT = $start_value";

  $con->query($query);

Render arrays

git checkout -b // TO TEST

git branch <branche>  // TO TEST

Example : (From user login block)

As you haven't a Delete button on interface translation page, you can't do that from the translation interface. But you can do in a small custom module.



Example : Delete string ID 346, 'Home'



      $lid = 346;



Example 1. Redirect to the front page:

    return new \Symfony\Component\HttpFoundation\RedirectResponse(\Drupal::url('<front>'));

Example 2. Redirect to a route path (user page):

Example : Password Reset Link.

      $link = \Drupal::l(t('Link'), \Drupal\Core\Url::fromRoute('user.pass'));

      drupal_set_message(t("Password Reset Link : @link!", ['@link!' => $link]));

Like Drupal 7, you can use check_markup();

CAUTION : This must only use on a rendered HTML page

file_move(FileInterface $source, $destination = NULL, $replace = FILE_EXISTS_RENAME)

Example:

$file = \Drupal\file\Entity\File::load($fid);

file_move(FileInterface $source, 'path/to/destination');