Error: Invalid configuration: iface_index must be an string and one of the following values: cards, list
Error: Invalid configuration: iface_rowamount must be a positive integer
Error: Invalid configuration: iface_lang must be a non-empty string
Error: Invalid configuration: iface_enabled_languages must be a non-empty string and contain a list of languages separated by commas
Error: Invalid configuration: syslog_use must be a boolean value (unquoted true or false)

$iface_lang = 'en_EN';
$iface_enabled_languages = 'en_EN';
$iface_rowamount = 30;
$iface_index = 'cards'; // or list

$syslog_use = false;
$syslog_ident = 'poweradmin';
$syslog_facility = LOG_USER;

  'interface' => 
  [
    'language' => 'en_EN',
    'enabled_languages' => 'en_EN',
    'style' => 'light',
    'theme_base_path' => 'templates',
    'title' => 'Poweradmin',
    'session_timeout' => 1800,
    'rows_per_page' => 30,
    'display_serial_in_zone_list' => false,
    'display_template_in_zone_list' => false,
    'show_zone_comments' => true,
    'search_group_records' => true,
    'add_reverse_record' => true,
    'theme' => 'default',
  ],
  'logging' => 
  [
    'database_enabled' => false,
    'syslog_enabled' => false,
    'syslog_identity' => 'poweradmin',
    'syslog_facility' => 8,
  ],