Question

Which one of the following filter is used to filter several variables with the same or different filters?

(a) filter_var_array()

(b) filter_var()

(c) filter_input

(d) filter_input_array

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Answer 1

Right answer is (a) filter_var_array()

The explanation: The function filter_var_array() can get multiple variables and it optionally filters them. The function is useful for filtering many values without calling filter_var().