PHP bitwise left shifting 32 spaces problem and bad results with large numbers arithmetic operations
- by Victor Stanciu
Hello,
I have the following problems:
First: I am trying to do a 32-spaces bitwise left shift on a large number, and for some reason the number is always returned as-is. For example:
echo(516103988<<32); // echoes 516103988
Because shifting the bits to the left one space is the equivalent of multiplying by 2, i tried multiplying the number by 2^32, and it works, it returns 2216649749795176448.
Second: I have to add 9379 to the number from the above point:
printf('%0.0f', 2216649749795176448 + 9379); // prints 2216649749795185920
Should print: 2216649749795185827
