php使用array_chunk函数将一个数组分割成多个数组

$array = ['name' =  'tom', 'age' =  20, 3, 4, 5, 'a', 'b'];

$chunk_result = array_chunk($array, 3);

Array
(
 [0] =  Array
  (
   [0] =  tom
   [1] =  20
   [2] =  3
  )
 [1] =  Array
  (
   [0] =  4
   [1] =  5
   [2] =  a
  )
 [2] =  Array
  (
   [0] =  b
  )
)

$chunk_result = array_chunk($array, 3, true);

Array
(
 [0] =  Array
  (
   [name] =  tom
   [age] =  20
   [0] =  3
  )
 [1] =  Array
  (
   [1] =  4
   [2] =  5
   [3] =  a
  )
 [2] =  Array
  (
   [4] =  b
  )
)