func_num_args

  • We can use variable arguments in Ruby using the glob operator (*). By prefixing a parameter in your method definition with this operator, you tell the method to combine all remaining arguments for the method into an array for that argument. We can count the number of arguments by checking the length of the resulting array.

    PHP

    function test()
{
    return func_num_args();
}
 
print test(1, 2, 3, 4);
// => 4

    Ruby

    def test(*nums)
  nums.length
end
 
puts test(1, 2, 3, 4)
# => 4

    see also

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