如何组合多维数组值和键？

I have this following array

我有以下数组

array (
  1 => 
  array (
    't' => 
    array (
      0 => 't1',
      1 => 't2',
      2 => 't3',
    ),
    'c' => 
    array (
      0 => 'c1',
      1 => 'c2',
      2 => 'c3',
    ),
    'd' => 
    array (
      0 => 'd1',
      1 => 'd2',
      2 => 'd3',
    ),
  ),
  2 => 
  array (
    'j' => 
    array (
      0 => 'j1',
      1 => 'j2',
      2 => 'j3',
    ),
    'm' => 
    array (
      0 => 'm1',
      1 => 'm2',
      2 => 'm3',
    ),
    'n' => 
    array (
      0 => 'n1',
      1 => 'n2',
      2 => 'n3',
    ),
  ),
)
array (