public function execute() {
global $wgLocalDatabases, $wgMemc;
$dbr = $this->getDB( DB_SLAVE );
- $res = $dbr->select( 'interwiki', array( 'iw_prefix' ), false );
- $prefixes = array();
+ $res = $dbr->select( 'interwiki', [ 'iw_prefix' ], false );
+ $prefixes = [];
foreach ( $res as $row ) {
$prefixes[] = $row->iw_prefix;
}