File Hyperwallet/Util/HyperwalletUUID.php

1:	<?php
2:	namespace Hyperwallet\Util;
3:
4:	use Hyperwallet\Exception\HyperwalletException;
5:
6:	/**
7:	* The encryption service for Hyperwallet client's requests/responses
8:	*
9:	* @package Hyperwallet\Util
10:	*/
11:	class HyperwalletUUID {
12:
13:	/**
14:	* Generates UUID
15:	*
16:	* @return string
17:	*
18:	* @throws HyperwalletException
19:	*/
20:	public static function v4() {
21:	return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
22:
23:	// 32 bits for "time_low"
24:	mt_rand(0, 0xffff), mt_rand(0, 0xffff),
25:
26:	// 16 bits for "time_mid"
27:	mt_rand(0, 0xffff),
28:
29:	// 16 bits for "time_hi_and_version",
30:	// four most significant bits holds version number 4
31:	mt_rand(0, 0x0fff) \| 0x4000,
32:
33:	// 16 bits, 8 bits for "clk_seq_hi_res",
34:	// 8 bits for "clk_seq_low",
35:	// two most significant bits holds zero and one for variant DCE1.1
36:	mt_rand(0, 0x3fff) \| 0x8000,
37:
38:	// 48 bits for "node"
39:	mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
40:	);
41:	}
42:	}
43: