(PHP 8 >= 8.1.0)
FFI\CType::getFuncParameterType — Retrieve the type of a function parameter
Returns the type of a parameter for the underlying function type.
indexIndex of the function parameter, zero-based.
Returns the type of a parameter for the underlying function type. If the underlying type is not a function, or the given index is outside of the range of parameters of the function, an FFI\Exception is thrown.