如何在Laravel中构建多维集合

Question

I would like to build a collection like this:

a1 =>
   *name1
   b1 => aaa
   b2 => bbb
a2 =>
   *name2
   c1 => ccc
   c2 => ddd

How can I acomplish this using Laravel Collections? I tried many combinations of put and push but it didn't work out.

Answer 1

Use the collect method

collect([
    a1 => [
        b1 => aaa,
        b2 => bbb
    ], 
    a2 => [
        c1 => ccc,
        c2 => ddd
    ]
])