Array
(
[jwc_grades] => Array
(
[0] => Array
(
[2012] => Array
(
[1] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 5
[course] => 阿什顿
[point] => 2
[grade] => 1
)
)
)
)
)
[1] => Array
(
[2012] => Array
(
[1] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 6
[course] => 是电风扇等
[point] => 2
[grade] => 1
)
)
)
)
)
[2] => Array
(
[2012] => Array
(
[2] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 7
[course] => 不错
[point] => 2
[grade] => 1
)
)
)
)
)
)
如何让它变成
Array
(
[jwc_grades] => Array
(
[2012] => Array
(
[1] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 5
[course] => 阿什顿
[point] => 2
[grade] => 1
)
)
)
)
[2012] => Array
(
[1] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 6
[course] => 是电风扇等
[point] => 2
[grade] => 1
)
)
)
)
[2012] => Array
(
[2] => Array
(
[term_point] => 3.5
[term_average] => 88
[grades] => Array
(
[0] => Array
(
[jwc_grade_id] => 7
[course] => 不错
[point] => 2
[grade] => 1
)
)
)
)
)
就是让它的第三维消失 减少一维
我的第一反应是，你的这个需求其实就很奇怪。让第三维直接消失。
我不太知道你的具体的问题是什么，为什么会有这么奇怪的想要实现的功能。
但是还是比较建议，稍微看看自己的设计是不是可以有改进的地方，很多时候，如果一个东西很丑陋，那说明还不是最佳的答案。
你的需求是什麼呢？
你的數組有問題，多個2012的key放同一個數組裡面是不可能的。