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National_Instruments

200-500 · Question #142

PHP's array functions such as array_values() and array_key_exists() can be used on an object if the object...

The correct answer is D. None of the above. See the full explanation below for the reasoning.

Question

PHP's array functions such as array_values() and array_key_exists() can be used on an object if the object...

Options

  • Aimplements Traversable
  • Bis an instance of ArrayObject
  • Cimplements ArrayAccess
  • DNone of the above

How the community answered

(53 responses)
  • A
    8% (4)
  • B
    4% (2)
  • C
    13% (7)
  • D
    75% (40)

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