what evaluated in if(1&$i) in for loop

Question

I'm trying to understand what is being evaluated in the if statement contained within the for loop i.e what does '1&$i' expand to?

  for( $i= 0 ; $i <= 10 ; $i++ )
  {
         if(1&$i) {

          //do something
          }
  }

bitwise AND operator (http://stackoverflow.com/q/3737139/3933332) — Rizier123, Oct 15 '15 at 19:29
thank you thats put me in the right bit of php docs. on a similar vain where I see $var /= 8; is that something similar? — Barry Hamilton, Oct 15 '15 at 19:45

score 1 · Answer 1 · answered Oct 15 '15 at 19:30

1

The if statement is basically saying "If $i is odd, then do something"

answered Oct 15 '15 at 19:30

Jeff Lambert

`1 & [anything]` will only ever be true if the last bit in `[anything]` is set. If `[anything]` is a number, then `1 & [anything]` will only ever be true if that number is odd – Jeff Lambert Oct 15 '15 at 19:33

1 Answers1