📊 PHP
Q. Which PHP function checks if a variable is empty?
  • (A) is_null()
  • (B) isset()
  • (C) empty()
  • (D) blank()
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✅ Correct Answer: (C) empty()

Explanation: empty() checks for empty values including 0, '', null, false.

Explanation by: Kanak Sharma
empty() checks for empty values including 0, '', null, false.

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