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
)
)