1: <?php
 2: 
 3: namespace ModHelper;
 4: 
 5: /**
 6:  * @package ModHelper
 7:  * @since 1.0
 8:  */
 9: 
10: abstract class BitwiseFlag
11: {
12:     private $flags;
13: 
14:     /*
15:      * Note: these functions are protected to prevent outside code
16:      * from falsely setting BITS.
17:      */
18: 
19:     /**
20:      * Returns the stored bits.
21:      *
22:      * @access protected
23:      * @return int
24:      */
25:     protected function __construct()
26:     {
27:         return $this->flags;
28:     }
29: 
30:     protected function isFlagSet($flag)
31:     {
32:         return (($this->flags & $flag) == $flag);
33:     }
34: 
35:     protected function setFlag($flag, $value)
36:     {
37:         if ($value) {
38:             $this->flags |= $flag;
39:         } else {
40:             $this->flags &= ~$flag;
41:         }
42:     }
43: }
44: