Calculate 7 n / 8 without using division and multiplication operators | PHP program to evaluate 7 n / 8 without using * and / ; Step 1 ) First multiply number by 7 i . e . 7 n = ( n << 3 ) - n Step 2 ) Divide result by 8 ; Driver Code
< ? php function multiplyBySevenByEight ( $ n ) { return ( ( $ n << 3 ) - $ n ) >> 3 ; } $ n = 15 ; echo multiplyBySevenByEight ( $ n ) ; ? >