Driver code
$ arr = array ( -10 , -3 , 5 , 6 , -20 ) ; $ n = sizeof ( $ arr ) ; $ max = maxProduct ( $ arr , $ n ) ; if ( $ max == -1 ) { echo ( " No ▁ Triplet ▁ Exists " ) ; } else { echo ( " Maximum ▁ product ▁ is ▁ " . $ max ) ; }