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Suppose If the variable $a is equal to 5 and variable $b is equal to character a, what’s the value of $$b?
Answers:
Answer #1100, it’s a reference to existing variable.
Answer #25, $$b acts as a variable variable and would be the same as writing $a.
Answer #3$a=5; $b=\\"a\\";
echo $$b;
it will be 5 not 100;
echo $$b;
it will be 5 not 100;
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