comparison vendor/phpunit/php-timer/src/Timer.php @ 0:4c8ae668cc8c

Initial import (non-working)
author Chris Cannam
date Wed, 29 Nov 2017 16:09:58 +0000
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1 <?php
2 /*
3 * This file is part of the PHP_Timer package.
4 *
5 * (c) Sebastian Bergmann <sebastian@phpunit.de>
6 *
7 * For the full copyright and license information, please view the LICENSE
8 * file that was distributed with this source code.
9 */
10
11 /**
12 * Utility class for timing.
13 */
14 class PHP_Timer
15 {
16 /**
17 * @var array
18 */
19 private static $times = array(
20 'hour' => 3600000,
21 'minute' => 60000,
22 'second' => 1000
23 );
24
25 /**
26 * @var array
27 */
28 private static $startTimes = array();
29
30 /**
31 * @var float
32 */
33 public static $requestTime;
34
35 /**
36 * Starts the timer.
37 */
38 public static function start()
39 {
40 array_push(self::$startTimes, microtime(true));
41 }
42
43 /**
44 * Stops the timer and returns the elapsed time.
45 *
46 * @return float
47 */
48 public static function stop()
49 {
50 return microtime(true) - array_pop(self::$startTimes);
51 }
52
53 /**
54 * Formats the elapsed time as a string.
55 *
56 * @param float $time
57 * @return string
58 */
59 public static function secondsToTimeString($time)
60 {
61 $ms = round($time * 1000);
62
63 foreach (self::$times as $unit => $value) {
64 if ($ms >= $value) {
65 $time = floor($ms / $value * 100.0) / 100.0;
66
67 return $time . ' ' . ($time == 1 ? $unit : $unit . 's');
68 }
69 }
70
71 return $ms . ' ms';
72 }
73
74 /**
75 * Formats the elapsed time since the start of the request as a string.
76 *
77 * @return string
78 */
79 public static function timeSinceStartOfRequest()
80 {
81 return self::secondsToTimeString(microtime(true) - self::$requestTime);
82 }
83
84 /**
85 * Returns the resources (time, memory) of the request as a string.
86 *
87 * @return string
88 */
89 public static function resourceUsage()
90 {
91 return sprintf(
92 'Time: %s, Memory: %4.2fMB',
93 self::timeSinceStartOfRequest(),
94 memory_get_peak_usage(true) / 1048576
95 );
96 }
97 }
98
99 if (isset($_SERVER['REQUEST_TIME_FLOAT'])) {
100 PHP_Timer::$requestTime = $_SERVER['REQUEST_TIME_FLOAT'];
101 } elseif (isset($_SERVER['REQUEST_TIME'])) {
102 PHP_Timer::$requestTime = $_SERVER['REQUEST_TIME'];
103 } else {
104 PHP_Timer::$requestTime = microtime(true);
105 }