slicing syntax sugar

Sometimes, when we use arrays, we want to take some cols by using array_slice. Something quite readable and more easy to write could be ```php $array = [1,2,3,4,5,6,7,8,9]; $slice = $array[1:]; //we take from col 1 to end $slide2 = $array[1:4];//from col 1 to col 4 $slide3 = $array[1:20];//error ! ``` It can be useful when we use func_get_args() and we want to get rid of the first arg or any collection manipulation. It is the same usecase as array_slice but shorter.