original_string: protected static function swap(&$a, &$b, &$flipped)
      {
          $c = $a;
          $a = $b;
          $b = $c;
          $flipped = !$flipped;
      }
code: protected static function swap(&$a, &$b, &$flipped)
      {
          $c = $a;
          $a = $b;
          $b = $c;
          $flipped = !$flipped;
      }
code_tokens: protected static function swap ( & $ a , & $ b , & $ flipped ) { $ c = $ a ; $ a = $ b ; $ b = $ c ; $ flipped = ! $ flipped ; }
docstring: Swaps two variables.
  
  @param mixed $a
  The first variable which will become the second.
  @param mixed $b
  The second variable which will become the first.
  @param bool $flipped
  The boolean indicator which will change its value.
docstring_tokens: Swaps two variables .