Q. What is the use of the isset() function in PHP?

  • (A) Check if variable is empty
  • (B) Check if variable exists and is not null
  • (C) Set a variable
  • (D) Unset a variable
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✅ Correct Answer: (B) Check if variable exists and is not null
Explanation: isset() checks if a variable is set and not null.

Published by Rati Dubey ⭐ 9.05K Points at 09-Jun-2025 08:15 am in PHP

Explanation by: Rati Dubey
isset() checks if a variable is set and not null.

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