Driver Code
$ n = 3 ; echo $ n , " th ▁ Centered ▁ cube ▁ number : ▁ " ; echo centered_cube ( $ n ) ; echo " STRNEWLINE " ; $ n = 10 ; echo $ n , " th ▁ Centered ▁ cube ▁ number : ▁ " ; echo centered_cube ( $ n ) ; ? >