[PHP] delete part of array

[Sebastian]

how do i delete keys from an array if it has no values?
eg, this:

[name] => Array
  (
      [0] => grape
      [1] => apple
      [2] => 
      [3] => orange
      [4] => 
      [5] => cherry
  )

to:

[name] => Array
  (
      [0] => grape
      [1] => apple
      [2] => orange
      [3] => cherry
  )

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