Multiple result set in PHP?

In .NET SqlDataReader can retrieve multiple record set:

    Dim Connection As New SqlConnection(SomeConnectionString)
    'Note th开发者_开发知识库at the command will generate three result
    Dim Command As New SqlCommand("select '1a', '1b'; " & _
        "select '2a', '2b', '2c'; " & _
        "select '3a', '3b'; ", Connection)
    Dim Reader As SqlDataReader

    Connection.Open()

    Reader = Command.ExecuteReader

    Do
        While Reader.Read
            'Do something with the data
        End While
    Loop While (Reader.NextResult) 'Proceed to next result

    Reader.Close()
    Connection.Close()

The .NextResult moves the reader to the next result. How to do this in PHP? I basically want to avoid many round trips to the database.

Note: .Read here moves the next row while .NextResult moves to the next result.

1 query, 3 results:

result 1

1a 1b

result 2

2a 2b 2c

result 3

3a 3b

Note: Row is not equal to result. Result is much more like a table or set of rows.

You can do this if you are using PDO, by using PDOStatement->nextRowset(). Whether this is supported or not depends entirely on the database you are connecting to, and which PDO driver you use.