1: <?php
 2: namespace Peridot\WebDriverManager\OS;
 3: 
 4: /**
 5:  * System determines information about the operating system.
 6:  *
 7:  * @package Peridot\WebDriverManager\OS
 8:  */
 9: class System implements SystemInterface
10: {
11:     /**
12:      * Darwin pattern
13:      *
14:      * @var string
15:      */
16:     private static $darwin = '/^dar/i';
17: 
18:     /**
19:      * Windows
20:      *
21:      * @var string
22:      */
23:     private static $windows = '/^win/i';
24: 
25:     /**
26:      * {@inheritdoc}
27:      *
28:      * @return bool
29:      */
30:     public function isMac()
31:     {
32:         return preg_match(self::$darwin, PHP_OS);
33:     }
34: 
35:     /**
36:      * {@inheritdoc}
37:      *
38:      * @return bool
39:      */
40:     public function isWindows()
41:     {
42:         return preg_match(self::$windows, PHP_OS);
43:     }
44: 
45:     /**
46:      * {@inheritdoc}
47:      *
48:      * @return bool
49:      */
50:     public function isLinux()
51:     {
52:         $notMac = ! $this->isMac();
53:         $notWindows = ! $this->isWindows();
54: 
55:         return $notMac && $notWindows;
56:     }
57: 
58:     /**
59:      * {@inheritdoc}
60:      *
61:      * @return bool
62:      */
63:     public function is64Bit()
64:     {
65:         return PHP_INT_SIZE === 8;
66:     }
67: } 
68: