将数组的每个键和值与另一个数组组合在一起

I have this two arrays:

我有这两个数组:

$arr1 = Array ( 600 => 580, 500 => 480, 100 => 80 ) <- always 3

$arr2 = Array ( 'filt' => grey, 'or' => 90 ) <- this array is dynamic
$arr1 = Ar