是否可以通过数组计算数组?按数组计算数组
例如,计算[num]
和[price]
的总和各为[group]
。
Array
(
[0] => Array
(
[group] => Apple
[num] => 5
[price] => 10
)
[1] => Array
(
[group] => Apple
[num] => 2
[price] => 8
)
[2] => Array
(
[group] => Orange
[num] => 4
[price] => 6
)
[3] => Array
(
[group] => Orange
[num] => 12
[price] => 24
)
)
而结果会是这样:
Array
(
[0] => Array
(
[group] => Apple
[num] => 7
[price] => 18
)
[1] => Array
(
[group] => Orange
[num] => 16
[price] => 30
)
)
LOOP在数组并总结。 –
如果这个值来自表格,那么在获取它时必须进行计算。 –