📊 PHP
Q. What is the use of isset() function in PHP?
  • (A) The isset() function is used to check whether variable is set or not
  • (B) The isset() function is used to check whether the variable is free or not
  • (C) The isset() function is used to check whether the variable is string or not
  • (D) None of the above
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✅ Correct Answer: (A) The isset() function is used to check whether variable is set or not

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