shift right/left (Bitwise Operators) in php7 gmp extension

Question

What's the function name of shift right/left (Bitwise Operators) in php7 gmp extension? No something like gmp_shiftr found.

Answer 1

Notes contributed by Nitrogen. May be helpful for someone else too.

function gmp_shiftl($x,$n) { // shift left
  return(gmp_mul($x,gmp_pow(2,$n)));
}

function gmp_shiftr($x,$n) { // shift right
  return(gmp_div_q($x,gmp_pow(2,$n)));
}

For those who wish to do bitwise shifting, it's quite simple.. to shift left, just multiply the number by pow(2,x), and to shift right, divide by pow(2,x).