Which one of the following filter checks if variable of specified type exists? Options: A . &nbspfilter_has_var B . &nbspfilter_var C . &nbspfilter_id D . &nbspfilter_var_array

Which one of the following filter checks if variable of specified type exists?

Question

Which one of the following filter checks if variable of specified type exists?

Options:

A . filter_has_var

B . filter_var

C . filter_id

D . filter_var_array

Answer: Option A

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