Você procurou por: memxmlwriter (Inglês - Russo)

$memxmlwriter -> endelement ();
$memxmlwriter -> endelement ();

$memxmlwriter =new xmlwriter ();
$memxmlwriter =new xmlwriter ();

$memxmlwriter -> setindent ( true );
$memxmlwriter -> setindent ( true );

$memxmlwriter -> startelement ( 'book' );
$memxmlwriter -> startelement ( 'book' );

$memxmlwriter -> text ( 'book_' . $i );
$memxmlwriter -> text ( 'book_' . $i );

$batchxmlstring = $memxmlwriter -> outputmemory ( true );
$batchxmlstring = $memxmlwriter -> outputmemory ( true );