what are passing arguments by reference and value, PHP Fundamentals, PHP

Question:What are passing arguments by reference and passing arguments by value?

Answer Passing arguments by value: 
Means any changes made to those values within the scope of the function are ignored outside of the function.
Passing arguments by reference: 
Means any changes made to those values within the scope of the function are reflected outside of the function.

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What are passing arguments by reference and passing arguments by value?

Question:What are passing arguments by reference and passing arguments by value?

Answer Passing arguments by value: Means any changes made to those values within the scope of the function are ignored outside of the function.Passing arguments by reference: Means any changes made to those values within the scope of the function are reflected outside of the function.

Answer Passing arguments by value:
Means any changes made to those values within the scope of the function are ignored outside of the function.
Passing arguments by reference:
Means any changes made to those values within the scope of the function are reflected outside of the function.