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Which of following variables can be assigned a value to it?

(i) $3hello

(ii) $_hello

(iii) $this

(iv) $This

All of the mentioned

Only (ii)

(ii), (iii) and (iv)

(ii) and (iv)

Answer : Option D

Explanation :

A variable can't start with a number. Also $this is a special variable that can't be assigned, but $This can be assigned.

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