使用php数组编程输出以下结果：
Array
(

    [group60] => Array

        (

            [0] => 68

            [1] => 65

        )

 

    [group100] => Array

        (

            [0] => 100

        )

 

    [group70] => Array

        (

            [0] => 70

            [1] => 78

        )

 

    [group80] => Array

        (

            [0] => 85

            [1] => 85

        )

 

    [group90] => Array

        (

            [0] => 90

            [1] => 98

        )

 

)