Driver code
$ str = " geeksforgeeks " ; $ l = 102 ; $ r = 111 ; echo " Characters ▁ with ▁ ASCII ▁ values " . " ▁ in ▁ the ▁ range ▁ [ l , ▁ r ] ▁ are ▁ STRNEWLINE " ; echo " and their count is " . CountCharacters ( $ str , $ l , $ r ) ; ? >