hphp/test/quick/bitwise.php

   1 <?hh
   2 function f() {
   3   $x = 204; // 11001100 in binary
   4   $y = 170; // 10101010 in binary
   5   echo ($x ^ $y); // 01100110 in binary
   6   echo "\n";
   7   echo ($x & $y);
   8   echo "\n";
   9   echo ($x | $y);
  10   echo "\n";
  11   echo (~$x);
  12   echo "\n";
  13 }
  14 f();
  15
  16
  17 // Pairwise probe.
  18 function probe($l, $r) {
  19   echo "-------\n";
  20   echo "left: ";  var_dump($l);
  21   echo "right: "; var_dump($r);
  22   $v = ($l & $r); var_dump($v);
  23   $v = ($l | $r); var_dump($v);
  24   $v = ($l ^ $r); var_dump($v);
  25   $v = (~$l);     var_dump($v);
  26 }
  27
  28 function main() {
  29   $i = 0x3;
  30   $data = array(15, "7", "not an int. at all.");
  31   foreach ($data as $left) {
  32     foreach ($data as $right) {
  33       probe($left, $right);
  34     }
  35   }
  36 }
  37
  38 main();