if ( !isset( $pageMap[$row->ar_namespace][$row->ar_title] ) ) {
$pageID = $newPageID++;
$pageMap[$row->ar_namespace][$row->ar_title] = $pageID;
- $a['revisions'] = [ $rev ];
+ $a = [ 'revisions' => [ $rev ] ];
ApiResult::setIndexedTagName( $a['revisions'], 'rev' );
$title = Title::makeTitle( $row->ar_namespace, $row->ar_title );
ApiQueryBase::addTitleInfo( $a, $title );