Is there a Drupal function to return all the multisite names?

I have searched a bit but have not come up with anything.

  • Are you talking about domain access? What is a multisite name for you?
    – Pere
    Commented Jul 10, 2014 at 19:39
  • I mean if I have sites/foo.com and sites/example.com, it would return array('foo.com', 'example.com'). Commented Jul 10, 2014 at 19:41
  • ok, I'm not sure there's something built for this
    – Pere
    Commented Jul 10, 2014 at 19:49
  • each instance of drupal isn't necessarily aware of other instances. You could write a custom module that does a simple directory search under sites to return the values you want.
    – Geoff
    Commented Jul 12, 2014 at 16:47
  • 1
    There would (should?) not be an easy method in the Drupal API to do this, because multi-site instances are not supposed to be aware of each other. That said... I don't know what you're trying to achieve, but perhaps you could make it a requirement that the developer adds a sites.php file (see example.sites.php) and parse that file. Commented Jul 14, 2014 at 12:05

2 Answers 2


Okay, this is what I am using for now in a drushrc.php file. If you can improve upon this please post a new answer. Thanks

// Gets a list of all directories in /sites.
$sites = glob(drush_locate_root() . '/sites/*', GLOB_ONLYDIR);
// Strips the absolute path except for the last name.
$sites = array_map('basename', $sites);
// Removes the 'all' folder.
$sites = array_diff($sites, array('all'));
  • I like this solution but have replaced drush_locate_root() with DRUPAL_ROOT. It is set in index.php as the current working directory.
    – wranvaud
    Commented Aug 22, 2017 at 23:21

Another solution inspired by some team members and @marcvangend.

if (is_file(__DIR__ . '/../../sites.php')) {
  include __DIR__ . '/../../sites.php';
  $sites = array_keys($multisites);
  $sites[] = 'default';
  • Can I ask why do you need to do that? Why do you need the list of sites inside Drupal?
    – Pere
    Commented Jul 14, 2014 at 21:18
  • To make Drush look in a sites/{sitename}/drush/ folder for ../drush/commands, ../drush/aliases and ../drush/drushrc.php files. Commented Jul 15, 2014 at 11:15
  • This supposes that the project makes use of the sites.php file for multisite aliasing. As a side note, the default variable name in sites.php is $sites.
    – wranvaud
    Commented Aug 22, 2017 at 23:18

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