A

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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
  • Correct Answer - Option(B)
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  • Filed under category PHP
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Explanation by: Admin

isset() checks if a variable is set and not null.

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