Question: Answer me a blurred exam function sumofelements(){$a=30:echo $a;} This is an example for: call by value O call by reference O both O none of

Answer me a blurred exam function sumofelements(){$a=30:echo $a;} This is an

Answer me a blurred exam

function sumofelements(){$a=30:echo $a;} This is an example for: call by value O call by reference O both O none of the above

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