Hai cercato la traduzione di selectcollection da Inglese a Russo

selectcollection ( "foo" );
$writeresult = $e -> getwriteresult ();

$c = $mc -> selectcollection ( "test" , "test" );
$c = $mc -> selectcollection ( "test" , "test" );

$collection = $m -> selectcollection ( 'test' , 'phpmanual' );
$c =new mongocollection ( $db , 'foo' );

$collection = $m -> selectdb ( "foo" )-> selectcollection ( "bar" );
$collection = $m -> selectdb ( "foo" )-> selectcollection ( "bar" );