Q. What will be the output?

Code: 
$fn = function($x) { return $x * 2; };
echo $fn(3);
  • (A) 6
  • (B) 3
  • (C) Error
  • (D) NULL
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✅ Correct Answer: (A) 6
Explanation: Anonymous function multiplies input by 2.

Published by Roshan ⭐ 3.43K Points at 21-Apr-2026 05:56 am in PHP

Explanation by: Roshan
Anonymous function multiplies input by 2.

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