Convert a multidimensional array into a specific array pattern in PHP

I’ve been having difficulty visualizing how to return a specific array pattern from my extracted array from the spreadsheet table. You may refer to the extracted arrays below.

Here are the extracted arrays from my spreadsheet table

Array
(
    [0] => Array
        (
            [0] => Order Number
            [1] => Status
        )

    [1] => Array
        (
            [0] => 1111
            [1] => Shipped
        )

    [2] => Array
        (
            [0] => 2222
            [1] => For Veri
        )

    [3] => Array
        (
            [0] => 3333
            [1] => Delivered
        )

    [4] => Array
        (
            [0] => 4444
            [1] => Problematic
        )

    [5] => Array
        (
            [0] => 5555
            [1] => Onhold
        )

)

I would like for the array to be returned as below:

 Array(
      [1111] => Array
         {  
          [Order Number] => 1111
          [Status] => Delivered
          }
       [2222] => Array
         {  
          [Order Number] => 2222
          [Status] => Delivered
          }
     )

Would like to confirm if the array_combine function would work on this? Any help would be greatly appreciated.

Thanks!