42 $pieces = explode(
':', $title, 2 );
56 $isNamespacePartValid = $ns ===
null
57 ? $this->contentLanguage->getNsIndex( $pieces[0] ) !== false
60 if ( count( $pieces ) === 2 && $isNamespacePartValid ) {
61 [ $namespaceName, $pageName ] = $pieces;
67 return new ForeignTitle( $ns, $namespaceName, $pageName );