Q. Which function can be used to check if a key exists in an array?

  • (A) key_exists()
  • (B) array_key_exists()
  • (C) exists_key()
  • (D) has_key()
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✅ Correct Answer: (B) array_key_exists()
Explanation: array_key_exists() checks for the presence of a key in an array.

Published by Rati Dubey ⭐ 8.55K Points at 09-Jun-2025 08:19 am in PHP

Explanation by: Rati Dubey
array_key_exists() checks for the presence of a key in an array.

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