drupal_get_database_types()
Returns all supported database driver installer objects.
\Drupal\Core\Database\Install\Tasks[] An array of available database driver installer objects.
function drupal_get_database_types() { $databases = array(); $drivers = array(); // The internal database driver name is any valid PHP identifier. $mask = '/^' . DRUPAL_PHP_FUNCTION_PATTERN . '$/'; $files = file_scan_directory(DRUPAL_ROOT . '/core/lib/Drupal/Core/Database/Driver', $mask, array('recurse' => FALSE)); if (is_dir(DRUPAL_ROOT . '/drivers/lib/Drupal/Driver/Database')) { $files += file_scan_directory(DRUPAL_ROOT . '/drivers/lib/Drupal/Driver/Database/', $mask, array('recurse' => FALSE)); } foreach ($files as $file) { if (file_exists($file->uri . '/Install/Tasks.php')) { $drivers[$file->filename] = $file->uri; } } foreach ($drivers as $driver => $file) { $installer = db_installer_object($driver); if ($installer->installable()) { $databases[$driver] = $installer; } } // Usability: unconditionally put the MySQL driver on top. if (isset($databases['mysql'])) { $mysql_database = $databases['mysql']; unset($databases['mysql']); $databases = array('mysql' => $mysql_database) + $databases; } return $databases; }
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https://api.drupal.org/api/drupal/core!includes!install.inc/function/drupal_get_database_types/8.1.x