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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
  • Correct Answer - Option(A)
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