[0] => Array (
    [id] => 1
    [speaker_name] => John
    [events] => Array (
        [0] => Array (
            [0] => Array (
                [event_id] => 1
                [event_name] => Event1
                [types] => Array (
                    [0] => Type1
                    [1] => Type2
                    )
                )
            [1] => Array (
                [event_id] => 2
                [event_name] => Event2
                [types] => Array (
                    [0] => Type1
                    )
                )
            [2] => Array (
                [event_id] => 3
                [event_name] => Event3
                [types] => Array (
                    [0] => Type2
                    )
                )
            )
        )
    )
How to print this like this,
John - Event1 - Type1, Event2 - Type2
.................................................................................. Thanks.